JP2017145066A - Scream emergency shut-down system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system that enables a lift to be instantaneously brought to an emergency stop even when a location of an emergency stop button is not known and even by a person except an operator of the lift.SOLUTION: A scream emergency shut-down system includes: a mechanism (2) that requires emergency shut-down of movable parts (4A and 4B); a microphone (54) for picking up a sound; a scream recognition module (55) that recognizes a scream on the basis of an audio signal picked up by the microphone (54); and movable part emergency shut-down means (61, 62, 64 and 65) for bringing the movable parts (4A and 4B) to an emergency stop, when the scream is recognized on the basis of a signal from the scream recognition module (54).SELECTED DRAWING: Figure 8

Description

  The present invention relates to a scream emergency stop device, and more particularly to a device that performs an emergency stop of a mechanical device by voice using a voice recognition mechanism.

  When a burglar breaks into an office or store, a scream is made at the office. There is one that determines this scream and outputs an abnormal signal (see Patent Document 1).

JP 2012-48173 A

  By the way, in order to inspect and maintain the lower part of the vehicle, the vehicle may be lifted on a lift device. In this case, when the operator notices an emergency situation in which an emergency stop button is attached to the control panel installed near the lift device body or the lift device, and the vehicle is likely to fall during the lifting and lowering operation of the vehicle. It is conceivable that the operation of the lift device is urgently stopped by the operator operating the emergency stop button.

  However, if there is no operator near the emergency stop button at the moment of detecting the fall of the vehicle, it will not be in time for the emergency situation. If the emergency stop button and the operator are in a separated state and the operator has to move to the emergency stop button, the vehicle dropping process will progress even during the movement. Also, if the operator does not know the location of the emergency stop button, the emergency situation cannot be dealt with in the first place.

  In this case, it is known that people often scream unintentionally at the moment they sense an emergency situation where the vehicle is about to fall. The present inventor has conceived that if the screaming can be caught and the lift device can be stopped, the emergency situation such that the vehicle is likely to fall can be dealt with promptly. However, the above-mentioned Patent Document 1 does not describe any such points.

  Therefore, an object of the present invention is to provide a device that can instantaneously stop the lift device without knowing the location of the emergency stop button and without being an operator of the lift device.

  The scream emergency stop device of the present invention includes a mechanical device that requires an emergency stop of a movable part, a microphone that picks up voice, a scream recognition module that recognizes scream based on a voice signal picked up by the microphone, and a scream recognition module When a scream is recognized based on the signal, there is provided a movable part emergency stop means for emergency stopping the movable part.

  According to the present invention, when an emergency stop button is provided, the lift device can be instantaneously stopped without knowing the location of the emergency stop button and without being an operator of the mechanical device (lift device). can do.

It is a top view of the 2 pillar type lift device of a 1st embodiment of the present invention. It is a front view of the 2 pillar type lift device seen from the approach direction of vehicles of a 1st embodiment. FIG. 3 is a partially enlarged view of FIG. 2. It is a hydraulic circuit diagram of the hydraulic fluid supply means of the hydraulic actuator of the first embodiment. It is the schematic plan view which took out and showed a pair of support | pillar and a control board among the 2 pillar lift apparatuses of 1st Embodiment. It is a hydraulic circuit diagram of the hydraulic fluid supply means of the hydraulic actuator of the second embodiment. It is a hydraulic-circuit figure of the hydraulic-fluid supply means of the hydraulic actuator of 3rd Embodiment. It is a hydraulic-circuit figure of the hydraulic-fluid supply means of the hydraulic actuator of 4th Embodiment. It is a top view of the portal type 4 pillar type lift device of a 5th embodiment. It is a front view of the portal type 4 pillar type lift device seen from the approach direction of vehicles of a 5th embodiment. It is the XX sectional view taken on the line of FIG. It is a hydraulic circuit diagram of the hydraulic fluid supply means of the hydraulic actuator on the front column side of the fifth embodiment. It is a hydraulic circuit diagram of the hydraulic fluid supply means of the hydraulic actuator on the rear column side of the fifth embodiment. It is the schematic plan view which took out and showed two pairs of support | pillars among the portal type | mold 4 pillar lift apparatuses of 5th Embodiment. It is the schematic plan view which took out and showed two pairs of support | pillars among the portal type | mold 4 pillar lift apparatuses of 5th Embodiment. It is the schematic plan view which took out and showed two pairs of support | pillars among the portal type | mold 4 pillar lift apparatuses of 5th Embodiment. It is a schematic perspective view of the gate type car wash machine of 6th Embodiment. It is a longitudinal cross-sectional view of the vehicle traveling direction of the gate-type car wash machine of the sixth embodiment. It is a control system figure of the portal type car wash machine of a 6th embodiment. It is a schematic plan view of the gate type car wash machine of 6th Embodiment. It is a flowchart for demonstrating emergency stop of the motor for driving | running | working and the motor for rotation of 6th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a plan view of the two-post lift device 2, and FIG. 2 is a front view of the two-post lift device 2 viewed from the direction of entry of the vehicle. The two-post lift device 2 lifts up the vehicle 1 in order to inspect and maintain the lower part of the vehicle 1 in particular. The vehicle 1 here is assumed to be a vehicle having a relatively short vehicle length and a relatively light vehicle weight, such as a two-door or four-door passenger car or a light vehicle.

  First, a mechanically driven two-post lift device 2 will be outlined. The two-post lift device 2 (mechanical device) is composed of two struts 3A and 3B, two elevating bodies 4A and 4B (movable parts), four support arms 5A, 5B, 7A, and 7B. Are installed on the floor 18 of the inspection and maintenance site 17.

  As shown in FIG. 1, when the parking space of the vehicle 1 is set at a position drawn by a two-dot chain line on the floor surface 18 of the inspection and maintenance site 17, the pair of pillars 3 </ b> A and 3 </ b> B are located on both sides of the vehicle 1. And is erected vertically from the floor 18. In each support column 3A, 3B, elevating bodies 4A, 4B are provided so as to be movable (movable up and down) in the direction along the support columns 3A, 3B (that is, the vertical direction).

  A total of four support arms 5A, 5B, 7A, and 7B are pivotally pivotable in the horizontal direction on each of the two lifting bodies 4A and 4B on the front side in the vehicle entry direction and on the rear side in the vehicle entry direction. It is worn. Each of the four support arms 5A, 5B, 7A, and 7B can further extend and contract in the axial direction, and the support portions 6A, 6B, 8A, and the like, each of which includes a metal fitting at the tip of each of the support arms 5A, 5B, 7A, and 7B. 8B is provided.

  The two elevating bodies 4A and 4B are connected by a chain (not shown) so as to be able to move up and down in synchronization, and are driven in the vertical direction by a hydraulic actuator 22. This will be described with reference to FIG. 4. FIG. 4 is a hydraulic circuit diagram of the hydraulic oil supply means 23 of the hydraulic actuator 22 (pressure actuator). In FIG. 4, the hydraulic actuator 22 includes a hydraulic cylinder 22a and a rod 22b, and is housed inside one of the columns 3B.

  The hydraulic oil supply means 23 is mainly composed of a hydraulic oil tank 31, a hydraulic oil supply passage 32, a hydraulic oil supply pump 33 (a hydraulic fluid supply pump), and a motor 34, which are inside the control panel 19 (see FIG. 2). It is stored in. The control panel 19 is provided near the column 3B having the operation lever 11, and the hydraulic equipment housed in the control panel 19 and the hydraulic actuator 22 housed in the column 3B are embedded under the floor. The hydraulic oil supply passage 32 communicates.

  The hydraulic oil in the hydraulic oil tank 31 is supplied to the hydraulic actuator 22 through the hydraulic oil supply passage 32 by the operation of the hydraulic oil supply pump 33. When hydraulic oil having a predetermined pressure is supplied to the hydraulic actuator 22, the rod 22b extends to the outside of the cylinder 22a. The movement of the rod 22b is converted into a movement of a chain (not shown), and the movement of the chain is converted into a vertical movement of the elevating bodies 4A and 4B. Here, it is assumed that when the rod 22b extends outward from the hydraulic cylinder 22a, the two elevating bodies 4A and 4B move (rise) in the vertical direction while synchronizing. On the contrary, when the rod 22B retracts toward the inside of the hydraulic cylinder 22a, the two elevating bodies 4A and 4B move (lower) in the vertical direction while synchronizing.

  The hydraulic oil supply pump 33 is driven by a motor 34. The motor 34 is connected to a commercial power source 36 via an electric wire 35, and a power switch 37 and a normally open micro switch 38 are interposed between the motor 34 and the commercial power source 36. Therefore, even when the power switch 37 is turned on, the motor 34 is in a non-driven state when the micro switch 38 is in the OFF state. On the other hand, when the microswitch 38 is turned ON, an alternating current flows from the power source 36 to the converter attached to the motor 34 and is converted into direct current, and the motor 34 is driven by the converted direct current. The electric switches 43 and 53 interposed in the electric wire 35 will be described later.

  A hydraulic oil return passage 39 is branched from the hydraulic oil supply passage 32 between the hydraulic oil supply pump 33 and the hydraulic actuator 22, and a normally closed mechanical on-off valve 40 is interposed in the hydraulic oil return passage 39. When the mechanical opening / closing valve 40 is in the fully closed state, the hydraulic pressure of the hydraulic oil supplied to the hydraulic actuator 22 is maintained at a predetermined pressure. On the other hand, when the mechanical opening / closing valve 40 is opened, the hydraulic oil of the hydraulic actuator 22 is returned to the hydraulic oil tank 31 via the opened mechanical opening / closing valve 40. As a result, the rod 22b is pulled into the hydraulic cylinder 22a. In this case, if the oil temperature of the hydraulic oil is constant and the vehicle weight is constant, the moving speed of the two elevating bodies 4A and 4B in the downward direction in the vertical direction depends on the amount of hydraulic oil flowing through the open / close valve 40 in the open state. (Lift lowering speed) is determined. For this reason, the flow area of the open state of the mechanical on-off valve 40 is set in advance so that the descending speed of the lift does not become too fast. The electromagnetic open / close valves 42 and 52 interposed in the hydraulic oil return passage 39 will be described later.

  The operation lever 11 provided on one support column 3B turns the micro switch 38 on and off and opens and closes the mechanical on-off valve 40. This will be described with reference to FIG. 3. FIG. 3 is a partially enlarged view of FIG.

  In FIG. 3, the operation lever 11 is provided at a substantially middle height position in the vertical direction of one of the columns 3 </ b> B. The operation lever 11 is configured to be able to rotate around the fulcrum 10 on the side (the right side in FIG. 2) opposite to the side (the left side in FIG. 2) where the vehicle 1 enters in the column 3B. The fulcrum 10 is supported in the horizontal direction with respect to the column 3B. The operation lever 11 has an elevating arm 12 extending on the side opposite to the fulcrum 10 and a long hole 12 a that is long in the axial direction of the arm 12 is formed at the tip of the elevating arm 12.

  On the inner surface of the support column 3B, an upper and lower lever 14 slidable in the vertical direction by a guide 13 is provided. A pin 15 is fixed near the lower end of the vertical lever 14 in the vertical direction. The pin 15 is inserted into a long hole 12 a formed at the tip of the lifting arm 12. As a result, the vertical lever 14 and the operation lever 11 are connected. That is, when the operating lever 11 is rotated in the direction of the two-dot chain line arrow, the lifting arm 12 is rotated about the fulcrum 10 in the direction of the two-dot chain line arrow (clockwise in FIG. 3). 14 moves upward in the vertical direction. On the other hand, when the operating lever 11 is rotated in the direction of the one-dot chain line arrow, the lifting arm 12 is rotated about the fulcrum 10 in the direction of the one-dot chain line arrow (counterclockwise in FIG. 3). Moves downward in the vertical direction.

  At the upper end 14a in the vertical direction of the upper and lower levers 14, a normally open micro switch 38 is provided to face the upper end 14a. As described above, when the operating lever 11 is rotated in the direction of the two-dot chain line arrow, when the upper and lower levers 14 are moved upward in the vertical direction, the upper end 14a in the vertical direction of the upper and lower levers 14 contacts the micro switch 38. The micro switch 38 is switched from OFF to ON by touching and pressing.

  Further, the upper and lower levers 14 are integrally provided with an operating arm 16 projecting in the horizontal direction, and a mechanical on-off valve 40 is disposed opposite to the operating arm 16 from below in the vertical direction. When the up / down lever 14 is moved downward in the vertical direction, the lower end 16a of the operating arm 16 contacts and presses the opening / closing valve 40 to switch the mechanical opening / closing valve 40 from the fully closed state to the open state. . However, when the up / down lever 14 is moved downward in the vertical direction from the state where the up / down lever 14 is in the ON state, the operating arm 16 has a slight margin before the timing at which the micro switch 38 is switched from ON to OFF. The vertical position of the mechanical opening / closing valve 40 is set so that the lower end 16a contacts and presses the opening / closing valve 40.

  Next, how to use the two-post lift device 2 will be outlined. Here, a pair of raising / lowering bodies 4A and 4B shall descend | fall to the lowest end of the perpendicular direction.

  First, the four support arms 5A, 5B, 7A, and 7B are reduced so as to be the shortest, and placed in positions parallel to the vehicle approach direction so as not to obstruct the vehicle 1 from getting in. The vehicle 1 is intruded and parked in a parking space (see the two-dot chain line in FIG. 1), and the four support arms 5A, 5B, 7A, and 7B are rotated or expanded and contracted horizontally to lift the vehicle 1 The support portions 6A, 6B, 8A, and 8B are positioned below the up point. This completes the setting of the vehicle 1.

  The operating lever 11 is returned to the neutral position indicated by the solid line, and the power switch 37 is switched from OFF to ON. Here, the “neutral position” means that the upper end 14 a of the upper / lower lever 14 is not in contact with the micro switch 38, so that the micro switch 38 is in the OFF state, and the lower end 16 a of the operating arm 16 is in the mechanical on-off valve 40. This is the position where the mechanical on-off valve 40 is in the fully closed state because it is not in contact. Therefore, even if the power switch 37 is turned on, the motor 34 is not driven because the micro switch 38 is in the OFF state.

  When the operating lever 11 is rotated from the neutral position in the direction of a two-dot chain line arrow (clockwise in FIG. 3), the upper end 14a of the upper and lower levers 14 comes into contact with and presses the micro switch 38 via the lifting arm 12. Is switched from OFF to ON. As a result, the motor 34 for driving the hydraulic pump 33 is driven, and the rod 22b of the hydraulic actuator 22 is extended by the supply of hydraulic oil at a predetermined pressure by the hydraulic pump 33, so that a pair of lifting bodies on which the vehicle 1 is mounted. 4A and 4B are raised.

  Since the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted have reached a desired height, when the operation lever 11 is returned to the neutral position, the upper end 14a of the upper and lower levers 14 moves away from the micro switch 38, and the micro switch 38 Switches from ON to OFF. When the micro switch 38 is turned off, the rotation of the motor 34 is stopped and the operation of the pump 33 is stopped. As a result, the ascent of the rod 22b of the hydraulic actuator 22 stops, and the ascent of the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted stops at a desired height (see FIG. 2). In this state, the mechanic can perform various kinds of work for inspection and maintenance on the parts below the vehicle 1.

  When the operation lever 11 is rotated from the neutral position in the direction of the one-dot chain line arrow (counterclockwise in FIG. 3) after the inspection and maintenance work is completed, the vertical lever 14 moves downward in the vertical direction via the lifting arm 12. . When the operating arm 16 moves downward in the vertical direction as the upper and lower levers 14 move downward, the lower end 16a of the operating arm 16 comes into contact with and presses the mechanical opening / closing valve 40 to fully close the mechanical opening / closing valve 40. Switch from open to open. At this time, the hydraulic oil in the hydraulic actuator 22 is returned to the hydraulic oil tank 31 through the opened mechanical on-off valve 40, and the rod 22b is retracted into the cylinder 22a. Thereby, a pair of raising / lowering body 4A, 4B in which the vehicle 1 is mounted falls.

  When the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted are lowered to the lowest height position, when the operation lever 11 is returned to the neutral position, the operating arm 16 moves upward in the vertical direction together with the upper and lower levers 14. Thus, the mechanical opening / closing valve 40 is returned from the open state to the fully closed state. In this state, since the tire of the vehicle 1 is in contact with the floor 18 of the inspection / maintenance site, the vehicle 1 is moved back in the direction opposite to the intrusion direction and removed from the parking space. This completes the overview of the two-post lift device 2.

  Consider providing a button emergency stop device 41 in such a two-post lift device 2. For example, as shown in FIG. 4, the button emergency stop device 41 includes a normally open electromagnetic opening / closing valve 42, a normally closed electrical switch 43, an emergency stop button 44, and driving means 45 and 46. Generally, an emergency stop button is often not attached to a column type lift device. This is because there are many simple column-type lift devices that have only a valve that switches the flow of hydraulic pressure with air, and if the button-type emergency stop device 41 is provided in such a simple-type column-type lift device, This is because electric wiring is required and the cost becomes high. In addition, an emergency stop button is always attached to the control panel of the lift device having the control panel.

  When the pair of elevating bodies 4A, 4B carrying the vehicle 1 is descending, a normally open electromagnetic on-off valve 42 is provided in the hydraulic oil return passage 39 to urgently stop the pair of elevating bodies 3A, 3B. Prepare. Further, the electric wire 35 is provided with a normally closed electric switch 43 in order to urgently stop the pair of elevating bodies 4A, 4B when the pair of elevating bodies 4A, 4B on which the vehicle 1 is placed are rising. The emergency stop button 44 is attached in red at a conspicuous position on the outer surface of the control panel 19.

  When the emergency stop button 44 attached to the outer surface of the control panel 19 is pressed to switch from OFF to ON, the valve drive means 45 switches the electromagnetic opening / closing valve 42 from the fully open state to the fully closed state in response to the ON signal. The flow of the hydraulic oil returned from 22 to the hydraulic oil tank 31 is blocked. Accordingly, when the pair of lifting bodies 4A and 4B on which the vehicle 1 is mounted are lowered, the movement of the pair of lifting bodies 4A and 4B that are lowered is urgently stopped. When the emergency stop button 44 is pressed to switch from OFF to ON, the switch drive means 46 switches the electrical switch 43 from ON to OFF in response to the ON signal, so that the drive of the motor 34 is stopped and the hydraulic oil supply pump The drive of 33 is stopped. As a result, when the pair of lifting bodies 4A and 4B on which the vehicle 1 is placed are rising, the movement of the rising pair of lifting bodies 4A and 4B is urgently stopped.

  Now, the vehicle 1 may fall from the pair of lifts 4A and 4B in a state where the vehicle 1 is placed. For example, it is said that if the lift-up points of the support portions 6A, 6B, 8A, and 8B and the vehicle 1 are deviated, the posture of the vehicle 1 cannot be maintained and falls down. Further, since part or all of the inspection and maintenance of the lower part of the vehicle 1 has been completed, the mechanic (operator) lowers the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted by operating the operation lever 11. There is. In this case, if a tool box having a height of more than 50 cm is placed directly under the pair of elevating bodies 4A and 4B on which the vehicle 1 is placed, the tool box pushes up the vehicle 1 and makes the vehicle 1 unstable. . Then, when two of the four support portions 6A, 6B, 8A, and 8B are out of the lift-up point of the vehicle 1, the vehicle 1 can fall.

  In this case, the mechanic who witnessed an emergency situation that the vehicle 1 is likely to fall from the pair of lifting bodies 4A and 4B pushes the emergency stop button 44 attached to the control panel 19 to switch from OFF to ON. The pair of elevating bodies 4A and 4B on which the vehicle is placed can be urgently stopped, whereby the vehicle 1 can be prevented from falling from the pair of elevating bodies 4A and 4B.

  As described above, the button emergency stop device 41 is useful for the mechanic, but has the following drawbacks. That is, the emergency stop button 44 cannot be pushed immediately if there is no mechanic immediately on the side of the emergency stop button 44 at the moment when it is detected that the vehicle 1 is likely to fall from the pair of lifting bodies 4A and 4B. Even if a person other than the mechanic detects that the vehicle 1 is likely to fall from the pair of lifting bodies 4A and 4B, if the person does not know where the emergency stop button 44 is, the emergency stop button 44 is It cannot be pressed quickly. Even if an emergency situation is witnessed, it is not possible to respond to an emergency situation if the trouble is to find the emergency stop button 44 just by standing up on the spot.

  By the way, it is known that a person screams unintentionally in many cases at the moment when the emergency situation that the vehicle 1 is likely to fall from the pair of lifting bodies 4A and 4B is detected. The present inventor has conceived that if the lift device 2 can be stopped suddenly by catching the unintentionally rising scream, the vehicle 1 can quickly cope with an emergency situation where the vehicle 1 is likely to fall from the pair of lifting bodies 4A and 4B. When an emergency is noticed that the vehicle 1 is about to fall from the pair of lifting bodies 4A and 4B, the person who senses the emergency is put on the vehicle 1 by saying "Dangerous" or "Stop" In order to prevent the vehicle 1 from falling, it is desirable to stop the movement of the pair of lifting bodies 4A and 4B in the state instantaneously.

  Therefore, in the first embodiment of the present invention, a scream emergency stop device 51 is additionally provided to assist the button emergency stop device 41. The scream emergency stop device 51 performs an emergency stop of the mechanical device by voice using a voice recognition mechanism. Specifically, as shown in FIG. 4, the scream emergency stop device 51 includes a normally open electromagnetic open / close valve 52, a normally closed electrical switch 53, a microphone 54, a scream recognition module 55, driving means 56 and 57, an emergency The stop release button 58 and the initial state return means 59 are included.

  When the pair of elevating bodies 4A and 4B on which the vehicle 1 is placed are lowered, the normally open electromagnetic on-off valve 52 is connected to the hydraulic oil return passage 39 in order to urgently stop the pair of elevating bodies 3A and 3B. Prepare for. In addition, the electric wire 35 is provided with a normally closed electrical switch 53 in order to urgently stop the pair of lifting bodies 3A, 3B when the pair of lifting bodies 4A, 4B carrying the vehicle 1 is rising. .

  The person screams unintentionally at the moment when the emergency situation that the vehicle 1 is about to fall from the pair of lifting bodies 4A and 4B is detected. The microphone 54 is for picking up this scream unintentionally at the moment a person senses an emergency. In this case, when a person is present in a predetermined space centered on the two-post lift device 2 having the pair of lifting bodies 4A and 4B, it is considered that an emergency situation is detected and a scream is made. If there is a person (location) far away from the point where the emergency occurs, it will be difficult to notice the emergency and will not scream.

  For this reason, as shown in FIG. 5, the microphone 54 is provided so as to pick up a scream that rises within a predetermined space range R1 (see the dashed line in FIG. 5) centered on the two-post lift device 2. Here, FIG. 5 is a schematic plan view showing only the pair of support columns 3A and 3B and the control panel 19 in the lift device 2. FIG. Further, a microphone having a performance capable of picking up almost all sound in a predetermined space range R1 centering on the two-post lift device 2 is selected. It is determined in advance which range the predetermined space range R1 centered on the two-post lift device 2 is to be set.

  Here, since the control panel 19 is included in a predetermined space range R <b> 1 centered on the two-post lift device 2, a microphone 54 is provided inside the control panel 19. The reason why the microphone 54 is provided inside the control panel 19 is that a power source is required to pick up a signal from the microphone 19, and it is easy to connect to the power source within the control panel 19. It is also for dust prevention. Even if it is provided inside the control panel 19, the ability of the microphone 54 to pick up the sound does not drop significantly.

  Of course, the place where the microphone 54 is provided is not limited to the inside of the control panel 19. Since a high position is preferable for picking up a voice including scream, it can be considered to be provided at the upper end in the vertical direction of each of the columns 3A and 3B. However, in this case, it is necessary to arrange an electric wire that connects the microphone 54 and the power source.

  The scream recognition module 55 recognizes a scream from the voice picked up by the microphone 54. Scream recognition is an extension of speech recognition technology. A known scream recognition module 55 may be used.

  Here, “AuttomAtic Speech Recognition” is a technology in which a machine or computer listens to a human voice and automatically operates in response to a command, or changes the utterance content into characters. That is. In the speech recognition process, the voice of any person such as adult men and women, elderly people, and children is recognized as "speech" without specifying the speaker (speaking person) like the speech recognition known recently in smartphones. Can do. Instead of recognizing only the voice of a specific person, the voice of unspecified men and women or children (unspecified speakers) can be recognized. The reason why the voice of an unspecified speaker can be recognized in this way is that a phoneme is recognized stochastically by making an acoustic model.

  Different people scream differently. For this reason, a vocabulary to be recognized in the “word dictionary” is registered in order to more correctly recognize a voice screamed as a “word (word)”. For example, the words indicating danger include “dangerous”, “no use”, “get away”, and the like. Words that are interpreted as screams include "Gya" and "Kya". Words that urgently stop an operation or action include “stop” and “stop”. All these words are registered in the memory inside the scream recognition module 55.

  The scream recognition module 55 recognizes all words registered in the word dictionary as screams as “emergency stop”, determines that a voice command is input based on this word, and makes an emergency stop with respect to the valve driving means 56 and the electric switch driving means 57. Output a signal. To capture a normal conversation, a microphone that picks up the voice and a microphone that picks up the noise are provided in pairs, and a noise canceller that cancels the noise from both signals is essential, but screams capture the characteristics of the sound, so noise We believe that a microphone and a noise canceller that pick up the sound are not always necessary. By selecting a microphone that picks up noise and a microphone 54 that does not have a noise canceller, the cost of the microphone 54 can be reduced. However, if a microphone that picks up noise from the beginning and a noise canceller are attached to the microphone 54, the microphone 54 with the noise canceller attached may be used as it is.

  When the valve drive means 56 receives the emergency stop signal from the scream recognition module 55, the valve drive means 56 switches the electromagnetic on-off valve 52 from the fully open state to the fully closed state. As a result, the flow of hydraulic oil returned from the hydraulic actuator 22 to the hydraulic oil tank 31 is interrupted, so that when the pair of lifting bodies 4A and 4B mounted with the vehicle 1 is lowered, the pair of lifting and lowering moves down. The movements of the bodies 4A and 4B are urgently stopped.

  When the switch driving unit 57 receives the emergency stop signal from the scream recognition module 55, the switch driving unit 57 switches the electrical switch 53 from the ON state to the OFF state. As a result, the drive of the motor 34 is stopped and the drive of the hydraulic oil supply pump 33 is stopped. Therefore, when the pair of lift bodies 4A and 4B on which the vehicle 1 is mounted are lifted, the pair of lift bodies that rise. The movements of 4A and 4B are urgently stopped.

  The current speech recognition rate is said to be about 95%. That is, the voice cannot be recognized correctly in the remaining range of about 5%. For this reason, it cannot be said that the pair of lifting bodies 4A and 4B is not emergency stopped without being correctly recognized as a scream. However, the scream emergency stop device 51 is considered to be useful as a role of assisting a direct mechanical operation such as an operation (manual operation) by the operation lever 11.

  Further, a voice that is not screamed may be erroneously recognized as a scream, and the pair of lifting bodies 4A and 4B may be urgently stopped unnecessarily. However, even if the emergency stop is unnecessarily affected, the efficiency of the work performed by the mechanic is considered to be acceptable for safety.

  On the other hand, after the emergency stop of the pair of lifting bodies 4A and 4B by screaming and after confirming that the vehicle 1 is stable, it is necessary to continue the work interrupted by the screaming. For this reason, an emergency stop release button 58 is provided, for example, on the outer surface of the control panel 19 (see FIG. 2). In the initial state return means 59 for inputting a signal from the emergency stop release button 58, when the emergency stop release button 58 is pressed and switched from OFF to ON, the scream recognition module 55 is switched to the scream recognition module 55. The emergency stop signal output to the drive means 56 and the switch drive means 57 is canceled and a signal for returning to the initial state is output. Thereby, the electromagnetic on-off valve 52 and the electric switch 53 are returned to the initial state. Here, the initial state of the electromagnetic on-off valve 52 is a fully closed state, and the initial state of the electric switch 53 is an OFF state.

  Here, the function and effect of the first embodiment will be described.

  In the first embodiment, based on a two-post lift device 2 (mechanical device) that requires an emergency stop of a pair of lifting bodies 4A and 4B (movable parts), a microphone 54 that picks up sound, and a sound signal picked up by the microphone 54. A scream recognition module 55 for recognizing a scream, and a movable part emergency stop means (52, 53, 56) that urgently stops the pair of lifting bodies 4A, 4B when a scream is recognized based on a signal from the scream recognition module 55. , 57). According to the first embodiment, when the emergency stop button 44 is provided, even if the user does not know the location of the emergency stop button 44 and is not an operator of the two-post lift device 2, The column type lift device 2 can be instantaneously stopped immediately.

  According to the first embodiment, since the mechanical device is a two-post lift device 2 (lift device) that can move up and down with the vehicle 1 mounted thereon, the emergency stop button 44 is provided when the emergency stop button 44 is provided. Even if the location of 44 is not known and the operator of the two-column lift device 2 is not an operator, the vehicle 1 is likely to fall from the two-column lift device 2 by instantaneously stopping the two-column lift device 2. This can be suppressed.

According to the first embodiment, the lift device 2 is formed by extending or retracting the pair of elevating bodies 4A and 4B that can be moved up and down along the two support columns 3A and 3B that are erected in the vertical direction, and the rod 22b. A hydraulic actuator 22 (pressure actuator) that can drive the pair of elevating bodies 4A and 4B upward or downward, and hydraulic oil that supplies hydraulic oil (hydraulic fluid) to the hydraulic actuator 22 and extends the rod 22b. Supply pump 33 (working fluid supply pump), motor 34 for driving hydraulic oil supply pump 33, microswitch 38 (electric switch) for driving motor 34, and hydraulic oil return for returning hydraulic oil from hydraulic actuator 22 A passage 39 (working fluid return passage) and a hydraulic oil return passage 39 are interposed, and the hydraulic oil return passage 39 is normally closed. A mechanical open / close valve 40 (valve means), an operating lever 11 (up / down instructing means) for instructing to drive the pair of lifting / lowering bodies 4A, 4B to the ascending or descending side, and a pair of ascending / descending by the operating lever 11 When it is instructed to drive the bodies 4A, 4B to the ascending side, the electric switch operating means (12, 14) for turning on the micro switch 38 and the operation lever 11 bring the pair of elevating bodies 4A, 4B to the descending side. When instructed to drive, the two-column lift device 2 includes valve means actuating means (12, 14, 16) for opening the mechanical on-off valve 40, and the movable part is a pair of elevating bodies 4A, 4B. The movable part emergency stop means is connected in series with the mechanical on-off valve 40 and connected to the normally open electromagnetic on-off valve 52 (second valve means) and the microswitch 38 in series. When the second electric switch 53 that is normally OFF and the pair of elevating bodies 4A and 4B are driven downward, when the scream is recognized, the electromagnetic on-off valve 52 is returned to the fully closed state at the initial position or a pair of Since the second electric switch 53 is turned off to the initial position when the scream is recognized when the elevating bodies 4A and 4B are driven upward, the lift device includes a pair of elevating bodies. Even in the two-column lift device 2 that mechanically raises and lowers 4A and 4B by the operation lever 11, the mechanically driven two-column lift device 2 can be instantaneously stopped due to screaming.

  According to the first embodiment, since the microphone 54 is provided in the predetermined space range R1 centered on the two-column lift device 2, a scream is generated in the predetermined space range R1 centered on the two-column lift device 2. As long as it is raised, the two-post lift device 2 can be urgently stopped even if it is away from the emergency stop button 44.

  According to the first embodiment, since the microphone 54 does not include a microphone that picks up noise and a noise canceller, the cost of the microphone 54 can be reduced.

(Second and third embodiments)
6 and 7 are hydraulic circuit diagrams of the hydraulic oil supply means 23 of the hydraulic actuator according to the second and third embodiments. The same parts as those in FIG. 4 of the first embodiment are denoted by the same reference numerals.

  In the second embodiment shown in FIG. 6, the button emergency stop device 41 is not provided, but only the scream emergency stop device 51 is provided. In the third embodiment shown in FIG. 7, the button emergency stop device 41 and the scream emergency stop device 51 share the electromagnetic opening / closing valve 42, the electric switch 43, the valve driving means 45, and the switch driving means 46. In this case, the button emergency / scream emergency stop device 59 is obtained.

  In the second and third embodiments, the same effects as those of the first embodiment are obtained.

(Fourth embodiment)
FIG. 8 is a hydraulic circuit diagram of the hydraulic oil supply means 23 of the hydraulic actuator of the fourth embodiment. The same parts as those in FIG. 4 of the first embodiment are denoted by the same reference numerals.

  In the first embodiment, the micro switch 38 is switched from OFF to ON by the operation lever 11 to raise the pair of lifts 4A and 4B, and the mechanical opening / closing valve 40 is switched from the fully closed state to the open state. The elevating bodies 4A and 4B are lowered. On the other hand, 4th Embodiment electrically raises and descends a pair of raising / lowering body 4A, 4B. For this reason, a normally-closed electromagnetic on-off valve 61 is interposed in the hydraulic oil return passage 39, and a normally-off electric switch 62 is interposed in the electric wire 35 between the motor 34 and the commercial power source 36, respectively. Further, in the fourth embodiment, an elevating instruction button 63, a valve driving means 64, and a switch driving means 65 are provided. The elevating instruction button 63 is attached to the outer surface of the control panel 19, and the driving means 64, 65 are provided inside the control panel 19. Is provided.

  An outline of how to use the electric-driven two-post lift device 2 is as follows. When the lift button of the lift instruction button 63 is pressed and turned ON, the switch drive means 65 receives the ON signal and switches the electric switch 62 from the OFF state to the ON state. Therefore, the motor 34 is driven and the hydraulic oil supply pump 33 is driven. As a result, the rod 22b of the hydraulic actuator 22 extends, and the pair of elevating bodies 4A and 4B carrying the vehicle 1 rises.

  On the other hand, when the above raising button is pressed to return from ON to OFF, the switch drive means 65 receives the OFF signal and returns the electrical switch 62 from the ON state to the OFF state. The drive of the supply pump 33 is stopped. Accordingly, the extension of the rod 22b of the hydraulic actuator 22 is stopped, and the pair of elevating bodies 4A and 4B carrying the vehicle 1 are stopped.

  When the lowering button of the raising / lowering instruction button 63 is pressed and turned on, the electromagnetic open / close valve 61 is switched from the fully closed state to the opened state in response to the ON signal in response to the valve driving hand 64. Oil is returned to the hydraulic oil tank 31. As a result, the rod 22b of the hydraulic actuator 22 is retracted into the cylinder 22a. In response to this, the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted are lowered.

  On the other hand, when the lowering button is pressed to return from ON to OFF, the valve driving means 64 receives the OFF signal and returns the electromagnetic opening / closing valve 61 from the open state to the fully closed state. The flow of hydraulic fluid returned to is cut off. As a result, the retracting of the rod 22b of the hydraulic actuator 22 into the cylinder 22a is stopped, and the pair of elevating bodies 4A and 4B on which the vehicle 1 is mounted are stopped.

  In order to provide the button emergency stop device 41 in such an electrically driven two-post lift device 2, it is only necessary to add the emergency stop button 44 and share the drive means 64 and 65. Further, in order to provide the scream emergency stop device 51 in such an electrically driven two-post lift device 2, it is only necessary to add the microphone 54 and the scream recognition module 55 and share the drive means 64 and 65. Needless to say, when providing the scream emergency stop device 51, an emergency stop release button 58 and an initial return means 59 are added.

  Thus, according to the fourth embodiment, in the lift device, the pair of elevating bodies 4A and 4B that can be moved up and down along the two support columns 3A and 3B installed in the vertical direction, and the rod 22b extend. Alternatively, by retracting, the hydraulic actuator 22 (pressure actuator) that can be driven to the ascending or descending side while synchronizing the pair of elevating bodies 4A and 4B, and the operating oil (working fluid) is supplied to the hydraulic actuator 22 to connect the rod 22b. A working oil supply pump 33 (working fluid supply pump) that extends, a motor 34 that drives the working oil supply pump 33, an electric switch 62 that drives the motor 34, and a working oil that returns the working oil from the hydraulic actuator 22. A return passage 39 and an electromagnetic opening / closing bar that is interposed in the hydraulic oil return passage 39 and normally closes the hydraulic oil return passage 39. And a pair of ascending / descending instruction buttons 63 (elevating instruction means) for instructing to drive the ascending or descending side while synchronizing the pair of elevating bodies 4A and 4B, and the ascending / descending instruction button 63. When it is instructed to drive the bodies 4A and 4B upward, the pair of elevating bodies 4A and 4B are lowered by the switch driving means 65 (electric switch operating means) for turning on the electric switch 62 and the elevating instruction button 63. The two-column lift device 2 is provided with valve drive means 64 (valve means actuating means) that opens the electromagnetic on-off valve 61 when it is instructed to drive to the side, and the movable part is a pair of elevating bodies 4A, 4B, when the movable part emergency stop means recognizes the scream when the pair of elevating bodies 4A and 4B are driven downward, the electromagnetic on-off valve 61 is brought into the fully closed state at the initial position. If the scream is recognized when the pair of lifting bodies 4A, 4B are driven to the ascending side, the lift device is a means for turning the electrical switch 62 to the initial position OFF (64, 65). Even in the electrically driven two-column lift device 2 that electrically raises and lowers the bodies 4A and 4B, the electrically driven two-column lift device 2 can be instantaneously stopped due to screaming.

(Fifth embodiment)
FIG. 9 is a plan view of a portal four-column lift device 72 according to the fifth embodiment, FIG. 10 is a front view of the portal four-column lift device 72 viewed from the direction of entry of the vehicle, and FIG. It is X-ray sectional drawing.

  First, the portal type four-post lift device 72 will be outlined. The portal type four-post lift device 72 is installed on the floor surface (foundation surface) 18 of the inspection / maintenance site 17 and has a pair of front support columns 73A and 73B positioned on the near side in the vehicle intrusion direction, and the rear side in the vehicle intrusion direction. It is mainly comprised by a pair of rear side support | pillars 73D and 73E located in this. Here, it is assumed that the vehicle 71 has a relatively long vehicle length and a relatively heavy vehicle weight, such as a 12-ton truck.

  As shown in FIG. 10, the pair of front support columns 73A and 73B are formed in a gate shape as a whole by connecting the upper ends of the front support columns 73A and 73B in the vertical direction with a connection beam 73C. Bogies 81A and 81B are coupled to the lower ends of the front columns 73A and 73B in the vertical direction, and the carts 81A and 81B are placed on rails 83A and 83B laid on the floor 18 to thereby form a pair of front columns 73A. 73B and the entire connection beam 73C are configured to be movable in the direction in which the vehicle 71 enters.

  As shown in FIG. 9, each carriage 81A, 81B is driven using a motor or the like with four wheels (front wheels and rear wheels) rolling on rails 83A, 83B and one of the front wheels or rear wheels as a drive wheel. And obtaining cart driving units 82A and 82B. Here, assuming that the “front wheel” is the rear wheel in the vehicle approach direction and the “rear wheel” is the front wheel in the vehicle approach direction, the rear wheel is the drive wheel. When the mechanic (operator) operates an electric switch (forward switch and reverse switch) of a motor attached to the cart driving units 82A and 82B, the carts 81A and 81B (that is, the pair of front columns 73A and 73B) are self-propelled. It can be done. For example, when the forward switch is switched from OFF to ON, the trolleys 81A and 81B move toward the back in the vehicle traveling direction, and when the forward switch is returned from ON to OFF, the trolleys 81A and 81B stop at that position. . On the other hand, when the reverse switch is switched from OFF to ON, the carriages 81A and 81B move to the front side in the vehicle traveling direction, and when the reverse switch is returned from ON to OFF, the carriages 81A and 81B stop at that position.

  As shown in FIG. 10, the pair of front struts 73A and 73B includes the lifting bodies 74A and 74B. The elevating bodies 74A and 74B are supported by the front columns 73A and 73B so as to be movable in the vertical direction, and can move in the vertical direction in synchronization with each other.

  A hydraulic cylinder 86A is built in a front column (hereinafter referred to as “right front column”) 73B on the right side in the vehicle traveling direction, and this hydraulic cylinder 86A is coupled to a lifting body 74B supported by the right front column 73B. . A hydraulic unit 85A for supplying pressure oil to the hydraulic cylinder 86A is provided on the right front column 73B, and a mechanic operates a lift instruction button 87A (an up button and a down button) attached to the hydraulic unit 85A. Thus, the lifting body 74B of the right front column 73B is movable in the vertical direction.

  Further, several pulleys are arranged inside the right front column 73B, the connecting beam 73C, and a front column (hereinafter referred to as “left front column”) 73A on the left side in the vehicle traveling direction, and a chain 87 is wound around each pulley. . By this chain 87, the lifting body 74B of the right front column 73B is connected to the other lifting body 74A supported by the left front column 73A, and the lifting body 74A of the left front column 73A is connected to the lifting body 74B of the right front column 73B. It is possible to move in the vertical direction in synchronization with. For example, when the raising button of the raising / lowering instruction button 87A attached to the hydraulic unit 85A is switched from OFF to ON, the rod 86Ab of the hydraulic cylinder 86A extends and the raising / lowering bodies 73A and 74B of the front columns 73A and 73B become vertical. When moving upward (in the direction) and returning the above raising button from ON to OFF, the lifting bodies 73A and 74B of the front columns 73A and 73B stop at the height position. On the other hand, when the lowering button of the raising / lowering instruction button 87A attached to the hydraulic unit 85A is switched from OFF to ON, the rod 86Ab of the hydraulic cylinder 86A is retracted into the cylinder 86Aa, and the lifting bodies 73A, 73A, 73B of the front columns 73A, 73B are retracted. When 74B moves downward (lowers) in the vertical direction and returns the above-described lowering button from ON to OFF, the lifting bodies 73A and 74B of the front columns 73A and 73B stop at the height position.

  The elevating bodies 74A and 74B of the front struts 73A and 73B are supported by support arms 77A and 77B that are horizontally rotatable and extendable, and the height-adjustable support portions at the distal ends of the support arms 77A and 77B. 78A and 78B are provided.

  The configuration of the rear struts 73D and 73E is the same as the configuration of the front struts 73A and 73B except that there is no carriage that was on the front struts 73A and 73B. The pair of rear struts 73D and 73E are formed in a gate shape as a whole by connecting the upper ends in the vertical direction of the rear struts 73D and 73E with a coupling beam 73F. The legs 79A and 79B at the lower ends in the vertical direction of the rear columns 73D and 73E are fixed to the floor 18 as shown in FIGS.

  Each of the rear columns 73D and 73E is also provided with each lifting body (not shown). The lifts are supported by the rear columns 73D and 73E so as to be movable in the vertical direction and can move in the vertical direction in synchronization with each other.

  A hydraulic cylinder 86B is also incorporated in a rear column (hereinafter referred to as “right rear column”) 73E on the right side in the vehicle traveling direction, and a lifting body (not shown) supported by the hydraulic cylinder 86B and the right rear column 73E. ). A hydraulic unit 85B for supplying pressure oil to the hydraulic cylinder 86B is also provided on the right rear column 73E, and a mechanic operates the up / down instruction button 87B (the up button and the down button) attached to the hydraulic unit 85B. By doing so, the lifting body of the right rear column 73E can be moved in the vertical direction.

  Furthermore, several pulleys are also arranged inside the right rear column 73E, the connecting beam 73F, and the left column (hereinafter referred to as “left rear column”) 73D in the vehicle traveling direction, and a chain (not shown) Do not). With this chain, the lifting body of the right rear column 73E is connected to the other lifting body (not shown) supported by the left rear column 73D, and the lifting body of the left rear column 73D is connected to the right rear column 73E. It is possible to move in the vertical direction in synchronization with the lifting body. For example, when the raising button of the raising / lowering instruction button 87B attached to the hydraulic unit 85B is switched from OFF to ON, the rod 86Bb of the hydraulic cylinder 86B extends and the raising / lowering bodies of the rear columns 73D and 73E move in the vertical direction. When moving upward (raising) and returning the above-mentioned ascending button from ON to OFF, the lifting bodies of the rear columns 73D and 73E stop at the height position. On the other hand, when the lowering button of the raising / lowering instruction button 87B attached to the hydraulic unit 85B is switched from OFF to ON, the rod 86Bb of the hydraulic cylinder 86B is retracted into the cylinder 86Ba, and the lifting bodies of the rear columns 73D and 73E are moved. When moving downward (downward) in the vertical direction and returning the lowering button from ON to OFF, the lifting bodies of the rear columns 73D and 73E stop at the height position.

  Support arms 75A and 75B that are horizontally rotatable and extendable and extendable are also pivotally supported on the lifting bodies of the rear columns 73D and 73E, and the height-adjustable support portions 76A and 76B are supported at the distal ends of the support arms 75A and 75B. 76B is provided.

  It should be noted that the operation of moving and stopping two pairs of lifting bodies by two lifting buttons 87A and 87B attached to the hydraulic units 85A and 85B of the front columns 73A and 73B and the rear columns 73D and 73E is performed by two hydraulic units 85A. , 85B, the pair of elevating bodies 74A, 74B of the front columns 73A, 73B and the pair of elevating bodies of the rear columns 73D, 73E can be synchronized and moved in the vertical direction.

  Next, an outline of a procedure for using the portal type four-post lift device 72 will be described.

  (1) The front struts 73A and 73B are self-propelled along the rails 83A and 83B, so that the front struts 73A and 73B advance the motors attached to the cart drive units 82A and 82B so as not to interfere with the entry of the vehicle 71. The switch is switched from OFF to ON and moved to the far side in the vehicle approach direction. When the front struts 73A and 73B have moved to appropriate positions, the motor forward switch is returned from ON to OFF to stop the front struts 73A and 73B and stand by at that position (see the two-dot chain line in FIG. 9).

  (2) With the support arms 77A and 77B of the front support columns 73A and 73B being rotated in parallel to the vehicle entry direction, the vehicle 71 is caused to enter and stop at a predetermined stop position (see the two-dot chain line in FIG. 9). . The support arms 75A and 75B of the rear columns 73D and 73E are rotated and expanded and contracted in the horizontal direction so that the support portions 76A and 76B are aligned with the lift-up point on the front wheel side of the vehicle 71. The raising button of the raising / lowering instruction button 87B attached to the hydraulic unit 85B is switched from OFF to ON, the rod of the hydraulic cylinder is extended to raise the support arms 75A and 75B, and the support portions 76A and 76B are moved to the vehicle 71. Then, the lift button of the lift instruction button 87B is returned from ON to OFF to stop the support portions 76A and 76B.

  (3) While the support arms 77A and 77B of the front support columns 73A and 73B are rotated in parallel with the approach direction of the vehicle 71, the reverse switch of the motor attached to the cart driving units 82A and 82B is turned from OFF to ON. By switching to, the front struts 73A and 73B are moved from the standby position (1) to the front side in the vehicle entry direction. When the front struts 73A and 73B retreat to an appropriate position in front of the vehicle entry direction, the motor retreat switch is returned from ON to OFF to stop the front struts 73A and 73B. Thereafter, the support arms 77A and 77B on the side of the front columns 73A and 73B are rotated and extended so as to match the lift-up point at the rear of the rear wheel position of the vehicle 71, and the support portions 78A and 78B are moved to the rear wheel of the vehicle 71. Match the lift-up point on the side. Of the raising / lowering instruction button 87A attached to the hydraulic unit 85A, the raising button is switched from OFF to ON, the rod of the hydraulic cylinder 86 is extended to raise the support arms 77A and 77B, and the support portions 78A and 78B are attached to the vehicle. 71, after bringing it into contact with the lift-up point on the rear wheel side of 71, the raising button of the raising / lowering instruction button 87A is returned from ON to OFF to stop the support portions 78A and 78B.

  (4) The raising button of the raising / lowering instruction buttons 87A, 87B attached to the hydraulic units 85A, 85B is switched from OFF to ON again, and the supporting arms 77A, 77B on the front column 73A, 73B side and the rear column 73D, The support arms 75A and 75B on the 73E side are raised in synchronization, and the vehicle 71 is lifted horizontally. When the vehicle 71 reaches a desired level (height) (see the two-dot chain line in FIG. 10), the lift button of the lift instruction buttons 87A and 87B attached to the hydraulic units 85A and 85B is returned from ON to OFF. Stop the four support arms.

  (5) In the lift state of the vehicle 71, the mechanic can perform various inspection and maintenance operations on the parts below the vehicle 71.

  On the other hand, in order to lower the vehicle 71 from the lifted state, the lowering button of the lifting instruction buttons 87A and 87B attached to the hydraulic units 85A and 85B is switched from OFF to ON. As a result, the front column side and the rear column side by the lifting and lowering bodies 74A and 74B of the vehicle 71 and the front columns 73A and 73B, the lifting units of the rear columns 73D and 73E, the weights of the support arms 75A, 75B, 77A, and 77B. When the rod of each hydraulic cylinder is retracted into the cylinder, the vehicle 71 descends. This completes the outline of the procedure for using the portal type four-post lift device 72.

  12A and 12B are hydraulic circuit diagrams of the hydraulic oil supply means 23A and 23B of the hydraulic cylinders 86A and 86B built in the front columns 73A and 73B and the rear columns 73D and 73E, respectively. The same parts as those in FIG. 8 of the fourth embodiment are denoted by the same reference numerals. Here, since the hydraulic circuit for driving both hydraulic cylinders 86A and 86B is shown together, it becomes complicated. Therefore, FIG. 12A shows a hydraulic circuit diagram for the hydraulic cylinder 86A provided on the front column 73A and 73B side. The hydraulic circuit diagram about the hydraulic cylinder 86B provided in the rear column 73D, 73E side is shown. It should be noted that the parts relating to the front struts 73A and 73B are distinguished from each other by attaching “A” after the numeral and attaching “B” after the numeral to the parts relating to the rear struts 73D and 73E.

  Since the portal four-column lift device 72 electrically raises and lowers the four lifting bodies, the hydraulic pressure for driving the two hydraulic cylinders 86A and 86B of the portal four-column lift device 72 is shown. The circuit diagram has the same configuration as that of FIG. 8 of the fourth embodiment. The difference from FIG. 8 of the fourth embodiment is that the portal type four-post lift device 72 has two hydraulic cylinders, so that a hydraulic circuit for synchronizing the movements of the two hydraulic cylinders 86A and 86B is added. And so on. This completes the outline of the portal type four-post lift device 72.

  In the portal type four-post lift device 72, the button emergency stop device 41 can be added similarly to FIG. 8 of the fourth embodiment. As shown in FIGS. 12A and 12B, the button emergency stop device 41 includes an emergency stop button 44, electromagnetic on-off valves 61A and 61B, electric switches 62A and 62B, valve driving means 64A and 64B, and switch driving means 65A and 65B. Consists of.

  Here, the normally closed electromagnetic on-off valves 61A and 61B are interposed in hydraulic oil return passages 39A and 39B for returning the hydraulic oil of the hydraulic cylinders 86A and 86B to the hydraulic oil tank 31, respectively. For this reason, when the lowering button of the up / down instruction buttons 87A and 87B is pressed and switched from OFF to ON, the electromagnetic on-off valves 61A and 61B are switched from the fully closed state to the open state via the valve driving means 64A and 64B. Instead, the four lifting bodies descend.

  The normally closed electric switches 62A and 62B are interposed in electric wires 35A and 35B that connect the motors 34A and 34B for driving the hydraulic oil supply pumps 33A and 33B and the commercial power source 36, respectively. For this reason, when the up button of each of the up / down instruction buttons 87A and 87B is pressed and switched from OFF to ON, the electrical switches 62A and 62B are switched from OFF to ON via the switch drive means 65A and 65B, and the hydraulic oil pump 33A and 33B are driven and the two pairs of lifts rise.

  In the fifth embodiment, for example, as shown in FIG. 13A, it is assumed that the emergency stop button 44 is temporarily attached to the right front column 73B. Here, FIG. 13A is a schematic plan view showing only the front struts 73A and 73B and the rear struts 73D and 73E extracted from the portal type four-post lift device 72. FIG.

  When the vehicle 71 is lowered in a state where it is placed on two pairs of lifting bodies, when an emergency situation is detected such that the vehicle 71 is likely to fall, a person who has detected the emergency situation attaches it to the right front column 73B. When the emergency stop button 44 is pressed to switch from OFF to ON, the electromagnetic on-off valves 61A and 61B are switched from the open state to the fully closed state via the valve driving means 64A and 64B, and the two pairs of lifts are lowered. Stop.

  In addition, when the vehicle 71 is lifted in a state where it is placed on two pairs of lifting bodies, when the emergency situation that the vehicle 71 is likely to fall is detected, the person who has detected the emergency situation presses the emergency stop button 44. When switched from OFF to ON, the electrical switches 62A and 62B are switched from ON to OFF via the switch driving means 65A and 65B, the hydraulic oil supply pumps 33A and 33B are not driven, and the two pairs of lifting bodies are raised. To stop. Thus, the emergency stop of the two pairs of lifting bodies on which the vehicle 71 is riding can prevent the vehicle 71 from falling from the two pairs of lifting bodies.

  However, if there is no mechanic on the immediate side of the emergency stop button 44 at the moment when the emergency situation that the vehicle 71 is likely to fall from the two pairs of lifting bodies is detected, the emergency stop button 44 cannot be pushed immediately. Even if a person other than a person senses an emergency situation that the vehicle 71 is likely to fall from two pairs of elevators, if the person does not know the location of the emergency stop button 44, the emergency stop button 44 should be pressed immediately. As described above, the problem that the emergency stop button 44 cannot do is described.

  Therefore, also in the fifth embodiment, a scream emergency stop device 51 is added in addition to the button emergency stop device 41. The portal type four-post lift device 72 has a longer vehicle length and a heavier vehicle weight than a two-door or four-door passenger car, such as a 12-ton truck. Therefore, the time required for the mechanic to detect the emergency situation that the vehicle 71 is likely to fall from the two pairs of lifting bodies to reach the emergency stop button 44 is longer than in the case of the two-column lift device 2. For this reason, the significance of providing the scream emergency stop device 51 in the portal four-column lift device 72 is greater than the case where the scream emergency stop device 51 is provided in the two-column lift device 2.

  Also in the fifth embodiment, the scream emergency stop device 51 includes a microphone 54, electromagnetic on-off valves 61A and 61B, electric switches 62A and 62B, valve driving means 64A and 64B, and switch driving means as shown in FIGS. 12A and 12B. It is composed of 65A and 65B.

  In the fifth embodiment, as shown in FIG. 13A, the microphone 54 is placed so as to pick up a scream that rises within a predetermined space range R2 (see the one-dot chain line in FIG. 13A) centered on the portal type four-post lift device 72. Provide. Further, a microphone having a performance capable of picking up almost all sound in a predetermined space range R2 centering on the portal type four-post lift device 72 is selected. It is determined in advance which range the predetermined space range R2 centered on the portal type four-post lift device 72 is set.

  In this case, the predetermined space range R2 centered on the portal four-column lift device 72 shown in FIG. 13A is wider than the predetermined space range R1 centered on the two-column lift device 2 shown in FIG. For this reason, if it is a highly sensitive thing, as shown to FIG. 13A, it is good to provide the microphone 54 in the position slightly higher than the height of a person (adult), for example in the right front side support | pillar 73B. In FIG. 13A, the microphone 54 is described at the upper end in the vertical direction of the right front column 73B, but in reality, it is provided at a position slightly higher than the height of the person. In a position lower than the height of an adult, when a person stands in front of the microphone 54, the microphone 54 is difficult to pick up a scream. Even if the position is much higher than the height of the person (for example, the ceiling of the inspection and maintenance work), the microphone 54 is separated from the person and the microphone 54 is difficult to pick up a scream. Therefore, it is preferable to provide a microphone at a position slightly higher than the height of the person. The position to be finally provided on the right front column 73B is determined by adaptation.

  If the microphone 54 is omnidirectional, it may be provided in any direction. When the microphone 54 has directivity, it is attached with the directivity side facing outward. This is because a scream is often emitted from the outside of the portal type four-post lift device 72, and the outward direction is good for picking up a scream emitted from the outside. Here, “outward” refers to a direction from the center of the portal type four-post lift device 72 toward the outside. Further, when the microphone 54 is provided at the upper end in the vertical direction of the right front column 73B, it is preferable to attach a sponge cover or the like so that the microphone 54 is not dusted. When selecting an actual microphone, the cost, sensitivity, and durability are taken into consideration.

  The number of microphones 54 may be one as long as it has high sensitivity. Since a highly sensitive one is more expensive, it is conceivable that two microphones with moderate sensitivity are provided in the case of the microphone 54 having directivity. In this case, when assuming a rectangle in which two microphones 54A and 54B are connected by four straight columns 73A, 73B, 73D and 73E as shown in FIG. 13B, the microphones 54A and 54B may be arranged on the diagonal of the rectangle. For example, if one microphone 54A having directivity is attached outward only to the right front column 73B, the range where the scream can be captured is biased as a predetermined range R21 (see broken line). It is not possible to pick up the scream that is emitted from the back side of the microphone 54A. On the other hand, when the second microphone 54B is attached outward with respect to the left rear column 73D as shown in FIG. 13B, the range in which the second microphone 54B can catch a scream is a predetermined range R22 (see broken line). Therefore, a scream that cannot be picked up by the first microphone 54A can be picked up. In the case of a microphone having directivity, the arrangement of two microphones can double the range in which a scream can be captured more than a single microphone. The two microphones 54A and 54B can cover the range of the predetermined space range R2 with the portal type four-post lift device 72 as the center. In FIG. 13B, the microphones 54A and 54B are shown at the upper ends in the vertical direction of the right front column 73B and the left rear column 73D, but they are actually provided at positions slightly higher than the height of the person. As shown in FIG. 13C, the microphones 54A, 54A, 54B, and 54B are provided outwardly at positions slightly higher than the height of the four columns 73A, 73B, 73D, and 73E, and each microphone 54A, 54A, 54B, and 54B can capture the screams by setting the predetermined ranges R21, R22, R23, and R24 so that almost all of the predetermined spatial range R2 centered on the portal type four-post lift device 72 is obtained. It does not matter if you cover it.

  As described above, according to the fifth embodiment, the mechanical device is a portal type four-post lift device 72 (lift device) that can be moved up and down with the vehicle 71 mounted thereon, and therefore the emergency stop button 44 is provided. In addition, even if the location of the emergency stop button 44 is not known and the operator (mechanic) of the portal type four-post lift device 72 is not required, the portal type four-post lift device 2 can be stopped instantaneously by screaming. Thus, the vehicle 71 can be prevented from falling from the portal four-column lift device 72.

  According to the fifth embodiment, in the lift device 72, two pairs of lifting bodies that can be lifted and lowered along the four support columns 73A, 73B, 73D, and 73E standing in the vertical direction and the rods 86Ab and 86Bb extend. Alternatively, by retracting the two pairs of lifting bodies, the hydraulic actuators 86A and 86B (pressure actuators) that can be driven to the rising side or the lowering side while synchronizing the two pairs of lifting bodies, and the hydraulic oil 86A and 86B are supplied with hydraulic oil (working fluid) Operating oil supply pumps 33A and 33B (working fluid supply pump) for extending 86Ab and 86Bb, motors 34A and 34B for driving the hydraulic oil supply pumps 33A and 33B, and an electric switch 62A for driving the motors 34A and 34B , 62B and hydraulic oil return passage 39A for returning hydraulic oil from the hydraulic actuators 86A, 86B 39B (working fluid return passage) and electromagnetic on-off valves 61A and 61B (valve means) which are interposed in the hydraulic oil return passages 39A and 39B and normally close the hydraulic oil return passages 39A and 39B. The two pairs of lifting bodies are lifted by the lift instruction buttons 87A and 87B (lifting instruction means) for instructing to drive the two pairs of lifting bodies to the rising side or the lowering side while synchronizing the two pairs of lifting bodies and the lifting instruction buttons 87A and 87B. When the switch is instructed to drive, the switch drive means 65A, 65B (electric switch actuating means) for turning on the electric switches 62A, 62B and the lift instruction buttons 87A, 87B drive the two pairs of lifts downward. When instructed to do so, valve drive means 64A, 64B (valve means actuating means) for opening the electromagnetic on-off valves 61A, 61B are provided. The four-part lift device 72, the movable part is the two pairs of lifting bodies, and the movable part emergency stop means is electromagnetic when recognizing a scream when the two pairs of lifting bodies are driven downward. Means for returning the electrical switches 65A and 65B to the initial position when the screaming is recognized when the two-way lift valves 61A and 61B are returned to the fully closed state at the initial position or when the two pairs of lifts are driven to the ascending side (64A, 64B, 65A, 65B) Therefore, even in the four-column lift device 72 in which the lift device raises and lowers two pairs of lifting bodies, the four-column lift device 72 is instantaneously stopped due to screaming. can do.

  According to the fifth embodiment, the microphones 54, 54 </ b> A, 54 </ b> B are provided within the predetermined space range R <b> 2 centered on the portal four-column lift device 72, so that the predetermined space centered on the portal four-column lift device 72 is provided. As long as it screams within the range R2, the portal type four-post lift device 72 can be urgently stopped even if it is away from the emergency stop button 44.

  According to the fifth embodiment, since the microphones 54, 54A, 54B are provided at positions slightly higher than the height of the person (adult) of any of the columns 73A, 73B, 73D, 73E, it is possible to reliably pick up screams. .

  According to the fifth embodiment, when a quadrangle is formed by connecting the upper ends of the four columns 73A, 73B, 73D, 73E, one corner of the quadrangle and the other corner that is diagonally opposite to this corner Since the microphones 54, 54A, and 54B are provided at two locations, screams can be picked up even if they are not expensive microphones with high sensitivity.

  In the fifth embodiment, the front struts 73A and 73B are movable, and each of the front struts 73A and 73B and the rear struts 73D and 73E is provided with one hydraulic cylinder 86A and 86B and hydraulic units 85A and 85B. Although the case where the pair of lifting bodies are raised and lowered via the hydraulic cylinders by the instruction buttons 87A and 87B has been described, the present invention is not limited to this. First, the present invention can be applied to a case where the front column and the rear column are all fixed to the floor surface. Some hydraulic cylinders and hydraulic units for driving the hydraulic cylinders are provided for every four columns. This also has application of the present invention. In addition, there is a mechanism that raises and lowers a pair of lifting bodies via each hydraulic cylinder by a lifting operation lever. This also has application of the present invention.

  In the first to fifth embodiments, the column-type lift devices 2 and 72 standing on the floor 18 have been described, but the present invention is not limited to this. For example, a tuning cylinder includes a plurality of hydraulic cylinders that individually drive a plurality of platforms up and down, a hydraulic unit that sends out hydraulic pressure, and a tuning cylinder that is provided between the plurality of hydraulic cylinders and the hydraulic unit. Therefore, the present invention is also applicable to a so-called pantograph type lift device (see the back of JP-A-9-315790) that synchronizes the operation of each hydraulic cylinder so that a plurality of platforms are moved up and down at the same height. In addition, the present invention can be applied to a twin lift device (see Japanese Patent Application Laid-Open No. 2005-206288) embedded in a floor and other lift devices such as a one-column lift device.

  The first to fifth embodiments are cases where the pressure actuator is a hydraulic actuator, but is not limited thereto. For example, the pressure actuator may be an electric actuator or a pneumatic actuator.

(Sixth embodiment)
FIG. 14 is a schematic perspective view of a gate-type car wash machine 91 according to the sixth embodiment, and FIG. 15 is a longitudinal sectional view of the gate-type car wash machine 91 in the vehicle traveling direction.

  First, the gate type car wash machine 91 will be outlined. The gate-type car wash machine 91 includes two rails 92A and 92B laid parallel to the vehicle traveling direction of the car wash space 90 in the facility, and a car wash machine body 93 that can reciprocate on the rails 92A and 92B. It consists of. Hereinafter, a pair of parts is distinguished by attaching “right” to a part on the right side and “left” to a part on the left side as viewed from the vehicle approach direction. Further, “front” of the car wash machine body 93 means a direction toward the near side with respect to the vehicle traveling direction, and “rear” means a direction toward the back with respect to the vehicle traveling direction (see FIG. 14). .

  As shown also in FIG. 14, the car wash machine body 93 is formed in a gate shape having a pair of legs 93A and 93B and a horizontal portion 93C connecting the upper portions of the pair of legs 93A and 93B. On the inner surface side of the car wash machine body 93, two left and right car wash brush tools 94A and 94B hanging in the vertical direction and one car wash brush tool 94C positioned in the horizontal direction are provided. These three car wash brush tools 94A, 94B, and 94C are driven by dedicated motors 97A, 97B, and 97C, respectively (see FIG. 16).

  Also, on the inner surface side of each leg 93A, 93B, there are provided vehicle sensors 98A, 98B for detecting the shape of the car wash tool and the car to be washed, such as the wash liquid jet tools 95A, 95B and the air jet tools 96A, 96B. . Here, the cleaning liquid sprayers 95A and 95B are generic names. Actually, each of the cleaning liquid sprayers 95A and 95B is composed of a water sprayer, a shampoo sprayer, and a wax sprayer. A keyboard 99 and a printer 100 are provided on the front side of the right leg 93B. Further, the all stop button 105 may be attached to the front side of the right leg 93B. For example, when the button 105 is pressed to switch from ON to OFF when the user notices that he / she has forgotten to fold the door mirror, the operation of the car wash machine 91 is completely stopped. In the sixth embodiment, the case where each of the cleaning liquid sprayers 95A and 95B includes three water sprayers, a shampoo sprayer, and a wax sprayer is described. However, each of the cleaning liquid sprayers 95A and 95B is a water spray. It may be a lift made up of only ingredients.

  Further, as shown in FIG. 15, two wheels 101A, 101B, 102A, 102B are arranged in the vehicle entry direction at the lower part of each leg 93A, 93B in the vertical direction. . Among these, the pair of wheels 102 </ b> A and 102 </ b> B on the rear side (right side in FIG. 15) of the car wash machine body 93 is driven (turned) by the traveling motor 103. An encoder 104 is engaged with the left wheel 101 </ b> A on the front side of the car wash machine body 93.

  FIG. 16 is a control system diagram of the gate-type car wash machine 91. In FIG. 16, a start signal from the start switch of the keyboard 99, a pulse signal from the encoder 104, and detection signals from the vehicle sensors 98 </ b> A and 98 </ b> B are input to the control device 106 mainly composed of a microcomputer and a memory. From the control device 106, rotation motors 97A, 97B, and 97C for driving three car wash brushes 94A, 94B, and 94C, left and right cleaning liquid sprayers 95A and 95B, left and right air sprayers 96A and 96B, and a traveling motor 103 A control signal is output to Further, a print signal is output from the control device 106 to the printer 100.

  In the control device 106, a plurality of car washing processes are executed by one car wash, for example, a water washing process → shampoo process → wax process → drying process. That is, the vehicle 121 is first advanced in the approach direction and stopped at a predetermined position in the car wash space 90 (see the two-dot chain line in FIG. 15).

  When a start signal is input by pressing the start switch of the keyboard 99, the control device 106 outputs a normal rotation signal to the traveling motor 103 and a control signal to the left and right cleaning liquid ejectors 95A and 95B. Then, the car wash machine body 93 moves forward (forward) by the forward rotation of the traveling motor 103, and water is jetted toward the vehicle 121 from the left and right washing liquid ejectors 95 and 95 </ b> B. Here, the car wash machine body 93 moves (advances) forward of the car wash machine body 93 by “forward rotation” of the travel motor 103, and conversely, the car wash machine body 93 is moved by the “reverse rotation” of the travel motor 102. It is assumed to move (retreat) to the rear of the car wash machine body 93. This washing process is controlled based on the pulse signal of the encoder 104 and the detection signals of the vehicle sensors 98A and 98B. At the same time, the shape of the vehicle 121 is stored from the pulse signal of the encoder 104 and the detection signals of the vehicle sensors 98A and 98B, and the stored shape of the vehicle 121 is used when the subsequent car washing process is executed.

  When the water washing process is completed, the control device 106 outputs a reverse signal to the traveling motor 103 and a control signal to each of the three car wash brush tools 94A, 94B, 94C and the left and right cleaning liquid sprayers 95A, 95B. Then, the car wash machine body 93 is moved backward by the reverse rotation of the traveling motor 103, and the shampoo is sprayed from the left and right cleaning liquid sprayers 95 toward the vehicle 121, and the three left and right and upper three car wash brushes 94, 94B, 94C rotates while moving the left and right and upper bodies of the vehicle 121. The shampoo process is executed based on the pulse signal of the encoder 104, the detection signals of the vehicle sensors 98A and 98B, and the shape of the vehicle 121 stored during the water washing process.

  When the shampoo process is completed, the control device 106 outputs a normal rotation signal to the motor 103 and outputs control signals to the left and right cleaning liquid ejectors 95A and 95B. Then, the car wash machine main body 93 moves forward by the forward rotation of the traveling motor 103, and wax is injected toward the vehicle 121 from the left and right cleaning liquid injectors 95 </ b> A and 95 </ b> B. The execution of the wax process is also performed based on the pulse signal of the encoder 104, the detection signals of the vehicle sensors 98A and 98B, and the shape of the vehicle 121 stored in the water washing process.

  When the wax process ends, the control device 106 outputs a reverse rotation signal to the motor 102 and a control signal to the left and right air injectors 96A and 96B. Then, the car wash machine body 93 moves backward by the reverse rotation of the traveling motor 103, and air (compressed air) is injected toward the vehicle 121 from the left and right air injection tools 96 </ b> A and 96 </ b> B. The drying process is also executed based on the pulse signal of the encoder 104, the detection signals of the vehicle sensors 98A and 98B, and the shape of the vehicle 121 stored in the water washing process. Since all the steps are completed, the vehicle 121 is moved out of the car wash space 90. This completes the outline of the gate-type car wash machine 91.

  Now, in the gate type car wash machine 91, there is no problem as long as it is used normally. However, a child who came with his / her parents for car wash approached the car wash machine body 93 during the car wash with curiosity, and the car and the car wash machine body. 93 may try to enter. Alternatively, a child may try to enter between the wall 113 and the moving car wash main body 93 when the car wash main body is installed near the wall 113 as shown in FIG. If a person or parents who has detected such an abnormal situation associated with the child's behavior immediately presses the above-mentioned all stop button 105 and the operation of the car wash machine 91 is completely stopped, there is no problem, but there is a distance to the all stop button 105. Sometimes the abnormal situation continues even before the person or parents approach the stop button 105.

  On the other hand, those who have detected an abnormal situation associated with the child's behavior and parents (persons) tend to unexpectedly scream at the moment they sense the abnormal situation associated with the child's behavior. If the gate-type car wash machine 91 can be stopped urgently by catching a scream, an abnormal situation associated with the child's behavior can be promptly terminated.

  Therefore, in the sixth embodiment, a scream emergency stop device is added to the gate-type car wash machine 91 as in FIG. 8 of the fourth embodiment. For this reason, as shown in FIG. 16, a microphone 132, a scream recognition module 55, and an emergency stop release button 133 are added, and a signal from the scream recognition module 55 and a signal from the emergency stop release button 133 are input to the control device 106. .

  A microphone 132 is provided so as to pick up all the screams rising within a predetermined space range R3 (see the dashed line in FIG. 17) centering on the gate-type car wash machine 91 shown in FIG. In addition, the microphone 132 having a performance capable of picking up almost all sound in the predetermined space range R3 centering on the gate-type car wash machine 91 is selected. Here, FIG. 17 is a schematic plan view of the gate-type car wash machine 91. It is determined in advance which range the predetermined space range R3 centered on the door-type car wash machine 91 is to be set.

  If the microphone 132 has a high sensitivity, it is provided, for example, at the front left corner of the ceiling 93D of the car wash machine body 93 as shown in FIG. In this case, the microphone 132 may be provided in any direction as long as the microphone 132 is omnidirectional. As shown in FIG. 17, when the car wash machine 91 is installed with the corner of the facility as the car wash space 90 and the microphone 132 has directivity, the directivity side is directed to the direction in which the person is present in the facility. And attach. In FIG. 17, walls 113 are provided on the right and upper sides, and the left and lower sides are open. For this reason, there is a high possibility that there are persons related to the car wash machine 91 (customers who are washing the car, service personnel of the facility having the car wash machine 91) on the left and below. Attach it to the left, below or to the middle of these. This is because a scream is considered to be raised by a person who senses an abnormal situation associated with the behavior of a child in the facility having the car wash machine 91. Therefore, in order to pick up a scream rising in the facility having the car wash machine 91, the car wash machine 91 This is because the left side or the lower side where there is a person concerned with the car wash machine 91 in the facility having Since the microphone 132 of the sixth embodiment is exposed to the outside air, it is necessary to take measures for waterproofing and dustproofing.

  The emergency stop release button 133 is provided in front of the right leg 93B (see FIG. 14). The emergency stop release button 133 is for returning the gate-type car wash machine 91 after the gate-type car wash machine 91 stops urgently due to a scream.

  The scream recognition module 55 to which the voice signal from the microphone 132 is input recognizes the scream from the voice picked up by the microphone 132. In the control device 106 that inputs a signal from the scream recognition module 55, when the scream recognition module 55 recognizes a scream, a motor for rotation for driving the traveling motor 103 and the three car wash brushes 94A, 94B, 94C. 97A, 97B, and 97C are stopped in an emergency.

  This control performed by the control device 106 will be described with reference to the flowchart of FIG. The flow in FIG. 18 is for urgently stopping the traveling motor 103 and the three rotating motors 97A, 97B, and 97C, and is repeatedly executed at regular intervals (for example, every 10 ms).

  In step 1, a motor emergency stop flag (initially set to zero when the start switch of the keyboard 99 is turned on) is viewed. Here, the process proceeds to step 2 assuming that the motor emergency stop flag = 0. In step 2, it is checked whether or not a scream is recognized by the scream recognition module 55. If the scream is not recognized, the current process is terminated.

  When a scream is recognized by the scream recognition module 55 in step 2, the process proceeds to steps 3, 4, 5, 6, and 7. In steps 3 and 4, the motor emergency stop flag = 1 is set, and when the traveling motor 103 is being driven, the traveling motor 103 is emergency stopped. When the three rotation motors 97A, 97B, and 97C are being driven, the three rotation motors 97A, 97B, and 97C are urgently stopped in step 5. When the left and right cleaning liquid ejectors 95A and 95B are being driven, the driving of the left and right cleaning liquid ejectors 95A and 95B is stopped in step 6. When the left and right air injectors 96A and 96B are being driven, the driving of the left and right air injectors 96A and 96B is stopped in step 7.

  Since the motor emergency stop flag is set to 1 in step 3, the process proceeds from step 1 to step 8 from the next time, and it is determined whether or not a signal indicating that the emergency stop release button 133 is ON is input. If the signal indicating that the emergency stop release button 133 is ON is not input, it is determined that the safety of the gate-type car wash machine 91 has not yet been confirmed, and the process proceeds to Steps 3 to 7, and Steps 3 to 3 are performed in order to maintain the emergency stop state. Repeat step 7.

  If the emergency stop cancel button 133 is pressed and an ON signal is input, it is determined that the safety of the gate-type car wash machine 91 has been confirmed, and the process proceeds to Steps 9 to 13. In steps 9 and 10, the emergency stop of the traveling motor 103 and the three rotation motors 97A, 97B, and 97C is canceled and returned to the initial non-driven state.

  In steps 11 and 12, the drive stop of the left and right cleaning liquid sprayers 95A and 95B and the drive stop of the left and right air sprayers 96A and 96B are canceled and returned to the initial state. Here, the initial state of each of the cleaning liquid sprayers 95A and 95B is a state in which the cleaning liquid sprayers 95A and 95B are closed (no water, shampoo, or wax liquid is sprayed). Moreover, the initial state of each air injection tool 96A, 96B is a state in which the air injection tools 96A, 96B are closed (air is not injected).

  In step 13, the motor emergency stop flag is set to 0, whereby the gate-type car wash machine 91 is returned.

  As described above, according to the sixth embodiment, the machine device moves on the rails 92A and 92B by the rails 92A and 92B installed in the facility and the wheels 101A, 101B, 102A and 102B rotated by the traveling motor 103. A car wash machine body 93, an encoder 104 that outputs a pulse signal in conjunction with the rotation of the wheels, and car wash brush tools 94A, 94B, and 94C that are provided on the car wash machine body 93 and are driven to rotate by motors 97A, 97B, and 97C. A portal-type car wash machine 91 provided with vehicle sensors 98A and 98B provided in the car wash machine body 93, and a control device 106 for controlling the car wash tool based on the pulse signal of the encoder 104 and the signals of the vehicle sensors 98A and 98B. Yes, the movable part is a traveling motor 103 when traveling and a motor 97A when rotating the car wash brush. 97B, since it is 97C, even when the machine apparatus is a gantry car wash 91, can be instantly emergency stop movable part of the portal car washing machine 91 by screams.

  According to the sixth embodiment, at least cleaning liquid sprayers (95A, 95B) for spraying water and air sprayers 96A, 96B for spraying air, and cleaning liquid when spraying at least water to the movable part. Injecting air (95A, 95B), air injection tool when air is being injected, water injection and air injection from cleaning liquid injection tool (95A, 95B) during abnormal situations where screams accompanying child behavior increase The injection of air from the tools 96A and 96B can also be stopped.

In the embodiment, as a mechanical device that requires an emergency stop of the movable portion, a lift device such as a two-column type or a portal type four-column type, or a gate type car wash machine is described. Here, “the emergency stop of the movable part is required” means that the movable part has a strong correlation with other objects (including people), and other objects that have moved together with the movable part due to the movement of the movable part. It means a situation in which the stability or safety of other objects is impaired by moving away from the movable part or by deforming the outer shape of the other objects. In addition to those listed here, machinery that requires an emergency stop of the moving part includes: [1] Parking device,
[2] Combined vehicle testing machine,
[3] Wheel balancer,
[4] Metal working machine,
[5] Electric welding machine,
[6] Elevator,
[7] Escalator,
[8] Amusement facilities that are driven by motors such as ferris wheel, merry-go-round, octopus, and flight tower,
[9] There is a garbage truck. The present invention can also be applied to an emergency stop of a train at a train platform or train crossing.

  For example, as the above [1], a thin square member such as iron is arranged in a vertical or horizontal direction to form a rough lattice and a frame body configured as a rectangular parallelepiped as a whole, and a vehicle can be loaded onto and exited from this frame body. By arranging multiple trays so that they can move in the vertical direction (or in the horizontal direction) at regular intervals, and moving them in the vertical direction using an elevating drive device such as a motor, In addition, there is a mechanical multi-story parking apparatus that can store many vehicles.

  In this mechanical multilevel parking device, when a vehicle on the tray is taken out of the garage, a protective fence is provided in front of or around the position where the tray on which the vehicle is placed stops, and before the tray completely stops, It prevents people from entering the area. However, due to inadequate protection fences, people have entered the vicinity of the vehicle before the tray is completely stationary.

  Therefore, it is conceivable to add a scream emergency stop device to such a mechanical multi-story parking device. A scream recognition module that receives a signal from the microphone recognizes a scream by setting up a microphone in a range where a person who senses a person entering the vicinity of the vehicle before the tray completely stops can pick up the scream At this time, the above-mentioned lifting / lowering driving device is urgently stopped. As a result, even if the protective fence is in an incomplete state, it is possible to prevent a human accident due to contact between a person and a tray peripheral component.

  Also, as [2] above, the vehicle is placed on the pair of main rollers arranged coaxially in a direction perpendicular to the axis of each main roller, the left wheel is placed on the left main roller, and the right wheel is placed on the right main roller. By placing each on a roller, measuring the braking force by depressing the brake pedal on each main roller, and running the vehicle on each main roller at a fixed speed (for example, 40 km / h) There is a vehicular combined testing machine that measures an actual vehicle speed (see, for example, Japanese Patent Laid-Open No. 9-304239).

  In this combined vehicle testing machine, a pair of support rollers are arranged before and after each main roller to sandwich the left and right wheels so that the vehicle does not jump out of the traveling direction during speedometer inspection. Guide rollers are provided on the outer sides of the main rollers so as not to protrude outward in the lateral direction. In such a vehicular combined testing machine, it can be said that the vehicle never jumps out of the main roller, and in order to prepare for a situation where the vehicle is likely to jump out of the main roller at any moment. An emergency stop button is attached to the input operation panel installed in the vicinity of the station, and the emergency stop button can be pressed by a person who detects an abnormal situation to stop the rotation of the main roller.

  However, the emergency stop button cannot be pushed immediately if there is no person who has detected the emergency stop button at the moment when the vehicle is likely to jump out of the main roller. Even if a person other than the tester detects that the vehicle is likely to jump out of the main roller, if the person does not know where the emergency stop button is, press the emergency stop button. I can't.

  Therefore, it is conceivable to additionally provide a scream emergency stop device for such a combined vehicle testing machine. When a scream is recognized by a scream recognition module that receives a signal from the microphone, the main roller rotates when a person who has detected a situation where the vehicle is likely to jump out of the main roller can pick up the scream Emergency stop. As a result, it is possible to prevent the vehicle from jumping out of the main roller even by a person other than the person who is in the vehicle and performing the test.

  Also, as [9] above, a dust collecting box mounted on the vehicle body and having a rear opening, a dust throwing box provided on the rear surface of the rear opening, a dust throwing box provided in the dust throwing box, Some garbage collection vehicles equipped with a dust pushing device that pushes dust thrown into the dust collecting box into the dust collecting box are provided with an emergency stop device that urgently stops the operation of the dust pushing device (Japanese Patent Laid-Open No. 2008-285304). See the official gazette). Here, the dust pushing device is a push that rotates the dust thrown in from the inlet and lifts it upward, and swings around the upper swinging shaft, and pushes the raised dust into the dust collecting box. It consists of a board. In this case, an emergency stop operating member extending in the vehicle width direction with its lower end bulging rearward is provided at the lower portion of the input port of the dust input box so as to be able to swing back and forth. Detected by the stop detection unit, the operation of the dust pushing device is stopped urgently.

  During the dust collection work, the worker approaches the input port and throws in the dust, so that the clothes worn by the worker may be caught in the rotating plate. In this case, the operator can emergency stop the dust pushing device by pushing and operating the operation portion of the emergency stop operation member with his knee or the like.

  However, even if the emergency stop device described above is provided, it is not perfect. If the operation unit of the emergency stop operation member cannot be pushed and operated, clothes worn by the operator are caught in the rotating plate.

  Therefore, it is conceivable to add a scream emergency stop device to such a garbage truck. A scream recognition module that receives a signal from the microphone by installing a microphone in a range where a person who senses a situation where the clothes worn by the worker in the garbage truck and the operator are likely to be caught in the rotating plate can be picked up unexpectedly When the scream is recognized, the dust pushing device is stopped urgently. Thereby, even a person other than the worker can urgently stop the dust pushing device by screaming.

  Further, as the above [4], a movable mold that can move in the vertical direction with respect to a fixed mold is disposed oppositely, and a lifting mechanism that can raise and lower the movable mold using a hydraulic actuator as a drive source is provided. There is a press machine in which a movable mold is moved from a standby position to a bottom dead center position by this lifting mechanism. A function that automatically stops the slide (that is, the movable mold) when the light beam is blocked by a part of the body such as a hand, and automatically activates the slide when the beam is no longer blocked. A light-type safety device with a control function that also has

  It is conceivable to additionally provide a scream emergency stop device for a press machine equipped with such a light safety device. A scream recognition module that receives a signal from the microphone by installing a microphone in a range where a person who senses a situation where a part of the body enters between the fixed mold and the movable mold can pick up the unexpected scream When it is recognized, the movable mold is stopped urgently. As a result, even a person other than the operator can urgently stop the press machine by screaming. It is also useful in the sense that safety measures are doubled.

  Moreover, there exists an escalator provided with an emergency stop apparatus as said [7] (refer Unexamined-Japanese-Patent No. 2000-219474). In this escalator, an emergency stop means is activated by detecting a passenger walking on the outer deck board over a moving handrail or an entry prevention fence with a photoelectric device. However, even if the emergency stop device is provided, it is not perfect.

  Therefore, it is conceivable to add a scream emergency stop device to such an escalator. A scream recognition module that receives a signal from the microphone, with a microphone installed in a range where a person who has detected a situation where a passenger who has crossed a moving handrail or entry barrier can fall out of balance and unexpectedly picks up a scream When it recognizes, the escalator is urgently stopped. Thereby, the safety of the escalator can be further enhanced.

In addition, as the above [5], a welding robot having a welding power source, a wire supply device, a CO ₂ gas supply device, and a welding torch that receives gas supply of electric power, wire, and CO ₂ gas and can control the tip position. There is a gas shield electric welding machine provided with a main body (refer to JP-A-6-31449). The automatic welding by this electric welding machine is performed by setting the welding robot main body to the welding joint and automatically controlling each movement of the welding robot main body movable in three axial directions and the rotatable welding torch.

It is conceivable to additionally provide a scream emergency stop device for such an electric welder. A scream recognition module that receives a signal from the microphone by providing a microphone in a range where a person who senses the situation where the welding robot main body and welding torch move abnormally or abnormal sparks can pick up unexpected screams When recognizing the scream, the power supply to the welding robot body, the wire and the gas supply of CO ₂ gas are urgently stopped. Thereby, even if an operator does not move specially, an electric welding machine can be stopped urgently by screaming.

  In addition, in order to ensure the safety of passengers who have fallen on the railway track of the station platform, a red emergency stop button is often attached to the station platform. The signal from the emergency stop button is sent to a train operation system (train operation device), and when the emergency stop button is pressed, the train entering the station platform is emergency stopped. However, not all passengers know where the emergency stop button is located. For this reason, even if a passenger on the station platform happens to notice that a part of the track is buried due to a landslide in the immediate vicinity of the station platform when the train is approaching the station platform, Without knowing where the emergency stop button is, train accidents cannot be prevented.

  Therefore, it is conceivable to additionally provide a scream emergency stop device for such a train operation system. A scream that a passenger who suddenly senses a situation where the train entering the station platform needs to be stopped urgently, such as a situation where the train entering the station platform is likely to ride on the earth and sand filled in the track, as described above A microphone is provided in a range where it can be picked up, and when a scream is recognized by a scream recognition module that receives a signal from the microphone, the train entering the station homeme is urgently stopped. This makes it possible to prevent a vehicle accident due to a scream even if a passenger who senses a situation where the train entering the station platform needs to be stopped urgently does not know the location of the emergency stop button.

1 vehicle 2 2-post lift device (mechanical device, lift device)
3A, 3B Prop 4A, 4B Lifting body (movable part)
11 Operation lever (lifting instruction means)
22 Hydraulic actuator (pressure actuator)
23, 23A, 23B Hydraulic oil supply means 33, 33A, 33B Hydraulic oil supply pump (hydraulic fluid supply pump)
34, 34A, 34B Motor 38 Micro switch (Electric switch)
39, 39A, 39B Hydraulic oil return passage (working fluid return passage)
40 Mechanical open / close valve (valve means)
41 button emergency stop device 44 emergency stop button 51 scream emergency stop device 52 electromagnetic open / close valve (second valve means)
53 Electric switch (second electric switch)
54, 54A, 54B Microphone 55 Scream recognition module 61, 61A, 61B Electromagnetic on-off valve (valve means)
62, 62A, 62B Electric switch 63 Elevation instruction button (elevation instruction means)
64, 64A, 64B Valve drive means (valve means actuating means)
65, 65A, 65B Switch drive means (electric switch actuating means)
72 Gate type 4-post lift device (mechanical device, lift device)
73A, 73B, 73C, 73D Prop 86A, 86B Hydraulic actuator (pressure actuator)
87A, 87B Elevation instruction button (Elevation instruction means)
91 Car wash machine 92A, 92B Rail 93 Car wash machine body 97A, 97B, 97C Motor 98A, 98B Vehicle sensor 101A, 101B, 102A, 102B Wheel 103 Traveling motor 104 Encoder 106 Control device 132 Microphone

A scream emergency stop device according to the present invention includes a movable unit that requires an emergency stop, and a stop unit that accepts an operation by an operator and stops driving the movable unit, and a lift device that can move up and down with a vehicle mounted thereon. A microphone arranged or configured to pick up sound emitted by a person other than the operator in a predetermined spatial range centered on the lift device, and a scream that recognizes screams based on the sound picked up by the microphone A recognition module; and a movable part emergency stop means for urgently stopping the movable part when the scream recognition module recognizes a scream. In addition, the scream emergency stop device of the present invention includes a rail laid in the facility, a car wash machine body that moves on the rail by wheels that are rotated by a traveling motor, and a motor provided in the car wash machine body that is driven to rotate. A car wash brush tool, and at least a driving motor of the car wash machine main body and a motor of the car wash brush tool that receives an operation by an operator and is movable , and a predetermined centering on the gate car wash machine A microphone arranged or configured to pick up sound emitted by a person other than the operator in the spatial range, a scream recognition module for recognizing scream based on the sound picked up by the microphone, and the scream recognition module And a movable part emergency stop means for urgently stopping the gate-type car wash machine when a scream is recognized.

When the pair of elevating bodies 4A, 4B carrying the vehicle 1 is descending, a normally open electromagnetic on-off valve 42 is provided in the hydraulic oil return passage 39 in order to stop the pair of elevating bodies 4A, 4B urgently. Prepare. Further, the electric wire 35 is provided with a normally closed electric switch 43 in order to urgently stop the pair of elevating bodies 4A, 4B when the pair of elevating bodies 4A, 4B on which the vehicle 1 is placed are rising. The emergency stop button 44 is attached in red at a conspicuous position on the outer surface of the control panel 19.

When the pair of elevating bodies 4A and 4B on which the vehicle 1 is placed are lowered, the normally open electromagnetic on-off valve 52 is connected to the hydraulic oil return passage 39 in order to urgently stop the pair of elevating bodies 3A and 3B. Prepare for. Further, the electric wire 35 is provided with a normally closed electric switch 53 in order to urgently stop the pair of elevating bodies 4A, 4B when the pair of elevating bodies 4A, 4B on which the vehicle 1 is placed are rising. .

Here, since the control panel 19 is included in a predetermined space range R <b> 1 centered on the two-post lift device 2, a microphone 54 is provided inside the control panel 19. The reason why the microphone 54 is provided inside the control panel 19 is that a power source is required to pick up a signal from the microphone 54 , and it is easy to connect to the power source within the control panel 19. It is also for dust prevention. Even if it is provided inside the control panel 19, the ability of the microphone 54 to pick up the sound does not drop significantly.

The scream recognition module 55 recognizes a scream from the voice picked up by the microphone 54. Scream recognition is an extension of speech recognition technology. A known scream recognition module 55 may be used.

Here, the "voice recognition" (A utom a tic Speech Recognition), in machinery and computers hear the voice of the people, or to operate automatically in response to the instruction, or Hen喚the speech content in character It is technology to do. In the speech recognition process, the voice of any person such as adult men and women, elderly people, and children is recognized as "speech" without specifying the speaker (speaking person) like the speech recognition known recently in smartphones. Can do. Instead of recognizing only the voice of a specific person, the voice of unspecified men and women or children (unspecified speakers) can be recognized. The reason why the voice of an unspecified speaker can be recognized in this way is that a phoneme is recognized stochastically by making an acoustic model.

In the first embodiment, based on a two-post lift device 2 (mechanical device) that requires an emergency stop of a pair of lifting bodies 4A and 4B (movable parts), a microphone 54 that picks up sound, and a sound signal picked up by the microphone 54. A scream recognition module 55 for recognizing a scream, and a movable part emergency stop means (52, 53, 56, 57) that, when recognizing a scream based on a signal from the scream recognition module 55, makes an emergency stop of the pair of elevators 4A and 4B. ). According to the first embodiment, when the emergency stop button 44 is provided, even if the user does not know the location of the emergency stop button 44 and is not an operator of the two-post lift device 2, The column type lift device 2 can be instantaneously stopped immediately.

In the first embodiment, the micro switch 38 is switched from OFF to ON by the operation lever 11 to raise the pair of lifts 4A and 4B, and the mechanical opening / closing valve 40 is switched from the fully closed state to the open state. The elevating bodies 4A and 4B are lowered. On the other hand, 4th Embodiment electrically raises and descends a pair of raising / lowering body 4A, 4B. For this reason, a normally-closed electromagnetic on-off valve 61 is interposed in the hydraulic oil return passage 39, and an electric switch 62 that is normally OFF is interposed in the electric wire 35 between the motor 34 and the commercial power source 36, respectively. Further, in the fourth embodiment, an elevating instruction button 63, a valve driving means 64, and a switch driving means 65 are provided. The elevating instruction button 63 is attached to the outer surface of the control panel 19, and the driving means 64, 65 are provided inside the control panel 19. Is provided.

In order to provide the button emergency stop device 41 in such an electrically driven two-post lift device 2, it is only necessary to add the emergency stop button 44 and share the drive means 64 and 65. Further, in order to provide the scream emergency stop device 51 in such an electrically driven two-post lift device 2, it is only necessary to add the microphone 54 and the scream recognition module 55 and share the drive means 64 and 65. Needless to say, when the scream emergency stop device 51 is provided, an emergency stop release button 58 and an initial state return means 59 are added.

Further, several pulleys are arranged inside the right front column 73B, the connecting beam 73C, and a front column (hereinafter referred to as “left front column”) 73A on the left side in the vehicle traveling direction, and a chain 87 is wound around each pulley. . By this chain 87, the lifting body 74B of the right front column 73B is connected to the other lifting body 74A supported by the left front column 73A, and the lifting body 74A of the left front column 73A is connected to the lifting body 74B of the right front column 73B. It is possible to move in the vertical direction in synchronization with. For example, when the raising button of the raising / lowering instruction button 87A attached to the hydraulic unit 85A is switched from OFF to ON, the rod 86Ab of the hydraulic cylinder 86A extends and the raising / lowering bodies 74A and 74B of the front columns 73A and 73B become vertical. When moving upward (in the direction) and returning the above raising button from ON to OFF, the lifting bodies 74A and 74B of the front columns 73A and 73B stop at the height position. On the other hand, when the lowering button of the raising / lowering instruction button 87A attached to the hydraulic unit 85A is switched from OFF to ON, the rod 86Ab of the hydraulic cylinder 86A is retracted into the cylinder 86Aa, and the raising / lowering bodies 74A , 74A , 73B of the front columns 73A, 73B. When 74B moves downward (lowers) in the vertical direction and returns the above-described lowering button from ON to OFF, the lifting bodies 74A and 74B of the front columns 73A and 73B stop at the height position.

The normally closed electric switches 62A and 62B are interposed in electric wires 35A and 35B that connect the motors 34A and 34B for driving the hydraulic oil supply pumps 33A and 33B and the commercial power source 36, respectively. For this reason, when the lift button of the up / down instruction buttons 87A and 87B is pressed and switched from OFF to ON, the electrical switches 62A and 62B are switched from OFF to ON via the switch drive means 65A and 65B, and hydraulic oil is supplied. The pumps 33A and 33B are driven to raise the two pairs of lifting bodies.

According to the fifth embodiment, in the lift device 72, two pairs of lifting bodies that can be lifted and lowered along the four support columns 73A, 73B, 73D, and 73E standing in the vertical direction and the rods 86Ab and 86Bb extend. Alternatively, by retracting the two pairs of lifting bodies, the hydraulic actuators 86A and 86B (pressure actuators) that can be driven to the rising side or the lowering side while synchronizing the two pairs of lifting bodies, and the hydraulic oil 86A and 86B are supplied with hydraulic oil (working fluid) Operating oil supply pumps 33A and 33B (working fluid supply pump) for extending 86Ab and 86Bb, motors 34A and 34B for driving the hydraulic oil supply pumps 33A and 33B, and an electric switch 62A for driving the motors 34A and 34B , 62B and hydraulic oil return passage 39A for returning hydraulic oil from the hydraulic actuators 86A, 86B And 39B (hydraulic fluid return passage), the hydraulic fluid return passage 39A, is always interposed 39B hydraulic oil return passage 39A, the electromagnetic type on-off valve 61A which has a 39B is fully closed, and 61B (the valve means), the two Two pairs of lifting bodies are driven to the ascending direction by the lifting instruction buttons 87A and 87B (elevating instruction means) for instructing to drive the pair of lifting bodies to the rising side or the descending side while synchronizing them. When it is instructed to do so, two pairs of lifting bodies are driven downward by switch driving means 65A, 65B (electric switch operating means) for turning on the electrical switches 62A, 62B and the lifting instruction buttons 87A, 87B. Is provided with valve driving means 64A and 64B (valve means operating means) for opening the electromagnetic on-off valves 61A and 61B. It is a four-post lift device 72, the movable part is the two pairs of lifting bodies, and the movable part emergency stop means is electromagnetic when it recognizes a scream when driving the two pairs of lifting bodies downward. Means for turning the electrical switches 65A, 65B OFF to the initial position when the open / close valves 61A, 61B are returned to the fully closed state at the initial position or when screaming is recognized when the two pairs of lifts are driven to the ascending side ( 64A, 64B, 65A, 65B), even in the four-column lift device 72 in which the lift device raises and lowers two pairs of lifting bodies, the four-column lift device 72 is instantaneously stopped due to a scream. be able to.

When a scream is recognized by the scream recognition module 55 in step 2, the process proceeds to steps 3, 4, 5, 6, and 7. In steps 3 and 4, the motor emergency stop flag = 1 is set, and when the traveling motor 103 is being driven, the traveling motor 103 is emergency stopped. When the three rotation motors 97A, 97B, and 97C are being driven, the three rotation motors 97A, 97B, and 97C are urgently stopped in step 5. When the left and right cleaning liquid ejectors 95A and 95B are being driven, the driving of the left and right cleaning liquid ejectors 95A and 95B is stopped in step 6. When the left and right air injectors 96A and 96B are being driven, the driving of the left and right air injectors 96A and 96B is stopped in step 7.

Therefore, it is conceivable to additionally provide a scream emergency stop device for such a train operation system. A scream that a passenger who suddenly senses a situation where the train entering the station platform needs to be stopped urgently, such as a situation where the train entering the station platform is likely to ride on the earth and sand filled with tracks, as described above may be provided a microphone range that can pick up, when it recognizes a scream scream recognition module that receives the signal from the microphone is cause an emergency stop of the train invading the station platform. This makes it possible to prevent a vehicle accident due to a scream even if a passenger who senses a situation where the train entering the station platform needs to be stopped urgently does not know the location of the emergency stop button.

Claims (12)

A mechanical device that requires an emergency stop of the moving part;
A microphone to pick up the sound,
A scream recognition module for recognizing a scream based on an audio signal picked up by the microphone;
A scream emergency stop device comprising: a movable part emergency stop means for urgently stopping the movable part when a scream is recognized based on a signal from the scream recognition module.   The scream emergency stop device according to claim 1, wherein the mechanical device is a lift device capable of moving up and down with a vehicle. Lift device
A pair of elevating bodies capable of moving up and down along two struts erected in the vertical direction;
A pressure actuator that can drive a pair of lifting bodies to the ascending or descending side by extending or retracting the rod; and
A working fluid supply pump for supplying a working fluid to the pressure actuator and extending the rod;
A motor for driving the working fluid supply pump;
An electrical switch for driving the motor;
A working fluid return passage for returning the working fluid from the pressure actuator;
Valve means interposed in the working fluid return passage and normally closing the working fluid return passage;
Elevating instruction means for instructing to drive the pair of elevating bodies to the ascending side or the descending side;
An electric switch actuating means for turning on the electric switch when the raising / lowering instructing means instructs to drive the pair of elevating bodies upward.
And a valve means actuating means for opening the valve means when it is instructed to drive the pair of elevating bodies downward by the ascending / descending instruction means,
The movable part is the pair of lifting bodies,
The movable part emergency stop means is connected to the valve means in series with a normally-open second valve means, connected to the electrical switch in series with a normally-off second electrical switch, and the pair of lifting bodies on the lower side. When the second valve means is returned to the fully closed state at the initial position when the scream is recognized or when the pair of elevating bodies are driven to the ascending side, The scream emergency stop device according to claim 2, further comprising: 2 means for turning off the electric switch at an initial position. The lift device is
A pair of elevating bodies capable of moving up and down along two struts erected in the vertical direction;
A pressure actuator capable of driving the pair of lifts to the ascending or descending side by extending or retracting a rod;
A working fluid supply pump for supplying a working fluid to the pressure actuator to extend the rod;
A motor for driving the working fluid supply pump;
An electrical switch for driving the motor;
A working fluid return passage for returning the working fluid from the pressure actuator;
Valve means interposed in the working fluid return passage and normally closing the working fluid return passage;
Elevating instruction means for instructing to drive the pair of elevating bodies to the ascending side or the descending side;
An electric switch actuating means for turning on the electric switch when the raising / lowering instructing means instructs to drive the pair of elevating bodies upward.
And a valve means actuating means for opening the valve means when it is instructed to drive the pair of elevating bodies downward by the ascending / descending instruction means,
The movable part is the pair of lifting bodies,
The movable part emergency stop means returns the valve means to the fully closed state at the initial position or raises the pair of lifting bodies when the scream is recognized when the pair of lifting bodies are driven downward. 3. The scream emergency stop device according to claim 2, wherein the scream emergency stop device is a means for turning the electric switch to an initial position OFF when recognizing the scream when driven to the side. The lift device is
Two pairs of lifting bodies that can be lifted and lowered along four pillars erected in the vertical direction;
A pressure actuator that can be driven upward or downward while synchronizing the two pairs of lifts by extending or retracting a rod;
A working fluid supply pump for supplying a working fluid to the pressure actuator and extending the rod;
A motor for driving the working fluid supply pump;
An electrical switch for driving the motor;
A working fluid return passage for returning the working fluid from the pressure actuator;
Valve means interposed in the working fluid return passage and normally closing the working fluid return passage;
Elevating instruction means for instructing to drive the two pairs of elevating bodies to the ascending side or the descending side while synchronizing them;
An electrical switch actuating means for turning on an electrical switch for closing the electrical switch when the lifting instruction means instructs to drive the two pairs of lifting bodies to the ascending side;
A valve-type four-post lift device comprising: valve means actuating means for opening the valve means when the raising / lowering instruction means instructs to drive the two pairs of elevating bodies downward.
The movable part is the two pairs of lifting bodies,
The movable part emergency stop means returns the valve means to the fully closed state at the initial position when the scream is recognized when the two pairs of lifting bodies are driven downward, or the two pairs of lifting bodies 3. The scream emergency stop device according to claim 2, wherein the scream emergency stop device is a means for turning the electrical switch to an initial position OFF when the scream is recognized when the scream is driven upward.   The scream emergency stop device according to any one of claims 2 to 5, wherein the microphone is provided in a predetermined space range centering on the lift device.   The scream emergency stop device according to any one of claims 3 to 5, wherein the microphone is provided at a position slightly higher than the height of an adult of any one of the columns.   6. A microphone is provided at two locations of one corner of the four struts and the other corner on a diagonal line when a quadrilateral is formed by connecting the upper ends of the four columns. Scream emergency stop device as described in.   The scream emergency stop device according to any one of claims 1 to 8, wherein the microphone does not include a microphone for picking up noise and a noise canceller. The mechanical device is
Rails laid in the facility,
A car washer main body that moves on the rail by a wheel that is rotated by a traveling motor;
An encoder that outputs a pulse signal in conjunction with the rotation of the wheel;
A car wash brush provided in the car wash machine body and driven to rotate by a motor;
A vehicle sensor provided in the car wash machine body;
A portal type car wash machine comprising: a control device for controlling the car wash tool based on a pulse signal of the encoder and a signal of the vehicle sensor;
2. The scream emergency stop device according to claim 1, wherein the movable portion is the traveling motor when traveling and the motor when rotating the car wash brush. A cleaning liquid sprayer for spraying at least water;
An air injection tool for injecting air,
11. The scream emergency stop device according to claim 10, further comprising the cleaning liquid ejecting tool when the at least water is ejected to the movable part and the air ejecting tool when the air is ejected.   The mechanical device is driven by a parking device including a mechanical multi-story parking device, a combined vehicle testing machine, a wheel balancer, a metal processing machine including a press machine, an electric welding machine including a gas shield electric welder, an elevator, an escalator, and a motor. 2. The scream emergency stop device according to claim 1, wherein the scream emergency stop device is at least one of a play facility, a garbage collection vehicle, and a train operation device.

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